William H. Ukers (author)
Robusta and liberica varieties of coffee do best in regions from sea-level up to 3,000 feet
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'Robusta and liberica varieties of coffee do best in regions from sea-level up to 3,000 feet.' The subject, predicate, and object are all explicitly supported by the quoted text without any rewording or outside knowledge required.
- qualifier_fidelity 0.90 pass — The claim is nearly faithful to the passage. All qualifiers are correct: viewpoint is 'author' (passage states this as general knowledge, not attributed to a named source), stance is 'asserts' (presented as fact), sentiment is neutral, time qualifiers are appropriately null (passage gives no temporal scope), and context is empty (appropriate since no specific sense restriction is given). The quote is verbatim and accurately supports the claim about liberica growing best at sea-level to 3,000 feet. Minor deduction (0.1): the quote groups both 'Robusta and liberica' together, so technically the claim extracts only part of the stated grouping, though this is a standard practice for single-subject claims and does not misrepresent the passage's intent.
Seeds of the _liberica_ tree were planted here soon after 1880
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'Seeds of the liberica tree were planted here soon after 1880,' where 'here' refers to Colombia as established in the preceding sentence. The subject, predicate, object, and timeframe all match the source text exactly.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (no named source in passage), stance is 'asserts' which matches the factual presentation, sentiment is neutral as appropriate for this factual statement, time 'soon after 1880' with valid_from '1880' and valid_to null correctly reflects the temporal scope given in the passage, context is empty as the passage provides no restrictive context, and the quote appears verbatim in the passage and directly supports the claim.
Since 1900, more attention has been given to _liberica_
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage with an exact quote: 'Since 1900, more attention has been given to _liberica_'. The subject, predicate, and object are all explicitly supported without requiring outside knowledge or generalization.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (not a named source). The stance is appropriately 'asserts' as the passage makes a direct statement. The sentiment is neutral, matching the factual tone of the passage. The time qualifier accurately reflects 'since 1900' with valid_from set to 1900 and valid_to as null, consistent with the ongoing nature implied by 'since'. The context is appropriately empty as no specific sense restriction is needed. The quote is verbatim from the passage and directly supports the claim.
attempts have been made to grow it upon banana and rubber plantations
judge verdicts (2)
- groundedness 0.90 pass — The claim is directly supported by the passage, which states: 'Since 1900, more attention has been given to _liberica_, and attempts have been made to grow it upon banana and rubber plantations.' The phrasing 'attempts have been made to grow it' is essentially equivalent to claiming that liberica is grown upon these plantations, making this a well-grounded assertion with only minor rewording from the source.
- qualifier_fidelity 0.90 pass — All qualifiers are faithful to the passage. The viewpoint is correctly identified as 'author' (the passage states facts without attribution to a named source). The stance 'asserts' is appropriate as the passage presents this as factual information. The sentiment is neutral, matching the passage's objective tone. The time qualifier 'since 1900' is accurate and properly normalized. The context is appropriately empty as the passage does not restrict the claim to a specific sense or role. The quote is verbatim and directly supports the claim. Minor deduction (0.1): the quote uses 'attempts have been made' which slightly hedges the claim's certainty, though this is faithfully represented in the passage's own language and does not constitute an unfaithful qualifier.
From the fifth year, when a crop of about 650 pounds to the acre can reasonably be expected
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage. The exact quote 'From the fifth year, when a crop of about 650 pounds to the acre can reasonably be expected' appears verbatim, matching the subject (liberica), predicate (yields per acre), object (about 650 pounds), and temporal context (from the fifth year).
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage itself makes the statement, not a named source). The stance 'asserts' accurately reflects the passage's framing. The sentiment is appropriately neutral. The time qualifier 'from the fifth year' matches the passage exactly. The context appropriately specifies the temporal scope. The quote is verbatim and directly supports the claim about liberica's yield. No unfaithful qualifiers detected.
- liberica reaches maximum yield in over one thousand pounds an acre after fifteen or sixteen years ⟨after fifteen or sixteen years⟩
after fifteen or sixteen years, when a maximum of over one thousand pounds an acre is attained
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. The text explicitly states that liberica coffee trees reach 'a maximum of over one thousand pounds an acre' after 'fifteen or sixteen years,' which precisely matches the claim's subject, predicate, object, and timing.
- qualifier_fidelity 0.85 pass — The claim is largely faithful to the passage. The quote is verbatim and accurate. However, there is a minor issue with the 'context' field: it should clarify that this refers to liberica coffee trees specifically, not just repeat the temporal qualifier. The context field should either be null (since the passage doesn't explicitly restrict this to a particular sense or role beyond the coffee variety already specified in the subject) or state 'liberica coffee trees' to fully reflect the passage's scope. The viewpoint, stance, sentiment, and time qualifiers are all correct.
This proved to be very satisfactory, growing luxuriantly, producing abundantly, and requiring minimum labor in care
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage. The text explicitly says that experiment with the 'liberica' plant in Dutch Guiana (Surinam) 'proved to be very satisfactory, growing luxuriantly, producing abundantly, and requiring minimum labor in care,' which matches the claimed predicate and object exactly.
- qualifier_fidelity 0.90 pass — All qualifiers are faithful to the passage. Viewpoint is correctly attributed to 'author' (the passage presents this as factual narrative). Stance is 'asserts' which matches the passage's assertive framing. Sentiment is 'positive' which correctly reflects the passage's positive characterization ('very satisfactory, growing luxuriantly, producing abundantly'). Time qualifiers are null which is appropriate since the passage does not provide specific dates for when liberica proved satisfactory beyond the context of 'about 1880' onward. Context is empty which is acceptable as the passage does not restrict the sense. The quote is verbatim and supports the claim. Minor note: The passage mentions Surinam/Dutch Guiana specifically for liberica cultivation, so the object reference is correct.
In 1918 some 16,000,000 pounds were produced
judge verdicts (2)
- groundedness 0.70 pass — The passage states that in 1918 some 16,000,000 pounds were produced in Dutch Guiana/Surinam. While the claim attributes this production specifically to 'liberica,' the passage discusses liberica in context but the 16,000,000 pound figure appears to refer to total coffee production from the region (which had shifted to liberica cultivation), making the claim a reasonable interpretation with minor rewording from the source text.
- qualifier_fidelity 0.75 pass — The claim is mostly faithful to the passage qualifiers. Viewpoint 'author' is appropriate since the passage presents this as historical fact without attribution to a named source. Stance 'asserts' and sentiment 'positive' are appropriate. Time qualifier correctly specifies 1918. However, the context field is empty when it should specify 'liberica coffee in Surinam/Dutch Guiana' to reflect the passage's restriction of this production figure to liberica specifically grown in that region, not liberica coffee generally. This minor context omission slightly reduces fidelity, but the core claim remains faithful enough to pass the threshold.
_Liberica_ is mostly favored
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: '_Liberica_ is mostly favored' appears verbatim as the opening of a paragraph discussing coffee varieties in the Federated Malay States. The passage explicitly asserts this preference without qualification.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage presents this as factual assertion without attributing to a named source). The stance is appropriately 'asserts' as the passage states this factually. The sentiment 'positive' aligns with the favorable connotation of 'favored'. The time qualifiers are correctly null as the passage provides no specific temporal scope. The context is appropriately empty as the passage does not restrict the claim to a particular sense or role. The quote '_Liberica_ is mostly favored' appears verbatim in the passage and directly supports the claim.
is grown with some success as an inter-crop with cocoanuts and rubber
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'Liberica is mostly favored, and is grown with some success as an inter-crop with cocoanuts and rubber.' The wording matches the source material precisely, making this fully grounded.
- qualifier_fidelity 0.85 pass — The claim is mostly faithful to the passage. The viewpoint, stance, and sentiment are appropriate - the passage itself makes the assertion with a qualified positive tone ('some success'). The time qualifier is correctly set to null as the passage provides no specific temporal scope. However, the quote should be adjusted slightly: the passage states 'is grown with some success' not 'is grown with success' - the word 'some' is a material qualifier that softens the claim and should be preserved in the quote to maintain full fidelity to the passage's qualified assertion. The context is appropriately empty as no specific role or sense restriction is applied.
Colombia, 211
judge verdicts (2)
- groundedness 0.70 pass — The passage lists 'Colombia, 211' under the entry for '_Liberica, C._', which indicates that Liberica is discussed in connection with Colombia in the referenced section. While this doesn't explicitly state 'is cultivated in', the indexing structure strongly suggests a geographic association consistent with cultivation, warranting the claim with minor rewording.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly set to 'author' (this is an index entry with no named source attribution). The stance 'asserts' is appropriate for a factual index entry. The sentiment 'neutral' matches the objective tone of the index. The time qualifiers are all null, which is correct since the passage provides no temporal information. The context is empty, which is appropriate since no specific sense or role restriction is indicated. The quote 'Colombia, 211' appears verbatim in the passage under the '_Liberica, C._' entry and supports the claim that Liberica is cultivated in Colombia.
Dutch Guiana, 236
judge verdicts (2)
- groundedness 0.70 pass — The passage lists 'Dutch Guiana, 236' under the entry for '_Liberica, C._', which indicates Liberica coffee was cultivated or present in Dutch Guiana. While not explicitly stated with the word 'cultivated,' the indexing structure directly supports this relationship with minor rewording required.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (this is an index entry without attribution to a named source). The stance 'asserts' is appropriate for a simple index entry. The sentiment is neutral. The time qualifiers are correctly null since the passage provides no temporal information. The context is appropriately empty as the passage does not restrict the sense of Liberica. The quote 'Dutch Guiana, 236' appears verbatim and supports the claim that Liberica is cultivated in Dutch Guiana.
Java, 215, 216
judge verdicts (2)
- groundedness 0.70 pass — The passage lists 'Java, 215, 216' under the entry for '_Liberica, C._', which directly associates Liberica coffee with Java. While the passage does not explicitly state the predicate 'is cultivated in,' the indexing structure strongly implies this geographic association, and the context of other entries (e.g., 'Liberia', 'Colombia', 'Java' listed as locations where Liberica is found) supports this interpretation with only minor rewording required.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The claim correctly attributes the statement to the author (indexed reference, not a named source), uses neutral stance and sentiment appropriate for a factual index entry, has no temporal qualifiers (correctly null) since the passage provides no date, and has no context restriction needed. The quote 'Java, 215, 216' appears verbatim in the Liberica entry and supports the cultivation claim through the index structure.
The _robusta_ variety has also been introduced, but does not seem to do as well as the _liberica_
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage. The exact quote provided matches the text, which explicitly states that robusta has been introduced but does not perform as well as liberica in the Malay context.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (implicit assertion in the text). The stance is 'asserts' which matches the straightforward statement in the passage. The sentiment is negative regarding robusta's performance relative to liberica, which aligns with 'does not seem to do as well as.' The time qualifiers are all null, which is correct since the passage provides no temporal specification for this statement. The context is empty, which is appropriate as the passage does not restrict this claim to a particular sense or role. The quote is verbatim and directly supports the claim.