William H. Ukers (author)
it was not until about 1800, that exportation began, with about 270,000 pounds
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage, which explicitly states: 'it was not until about 1800, that exportation began, with about 270,000 pounds.' The subject, predicate, object, and time frame all match the source text precisely.
- 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 'asserts' accurately reflects the passage's presentation. The sentiment is neutral, matching the factual tone. The time qualifiers 'about 1800' and normalized dates (valid_from: 1800, valid_to: null) correctly capture the temporal scope stated in the passage. The context is appropriately empty as the passage does not restrict the claim to a specific sense or role. The quote appears verbatim in the passage and directly supports the claim about Sumatra's coffee exports beginning around 1800 at 270,000 pounds.
By 1840, exports were averaging 11,000,000 to 12,250,000 pounds per year
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'By 1840, exports were averaging 11,000,000 to 12,250,000 pounds per year.' The subject, predicate, object, and time period all match the source text exactly without any added outside knowledge or over-generalization.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (who presents this as factual reporting). The stance is 'asserts' which matches the passage's declarative statement. The sentiment is neutral, appropriate for factual export data. The time qualifier correctly specifies 1840 as stated in the passage ('By 1840'). The context is appropriately empty since no specific sense or role restriction is needed for coffee exports. The quote is verbatim from the passage and directly supports the claim.
Official records of production date from 1852, in which year the figures were 16,714,000 pounds
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'Official records of production date from 1852, in which year the figures were 16,714,000 pounds.' The subject, predicate, object, time, and context all match the passage exactly without requiring outside knowledge or over-generalization.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (implicit narrator), the stance is appropriately asserted, sentiment is neutral as befits a factual statement, the time is precisely specified as 1852 matching the passage, the context correctly notes 'official records' as stated in the source, and the quote is verbatim and directly supports the claim.
Five years later the recorded yield was 25,960,000 pounds, the high-water mark of Sumatra production
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. The text explicitly states 'Five years later the recorded yield was 25,960,000 pounds' in reference to Sumatra production five years after 1852, which correctly places it at 1857 and identifies this as 'the high-water mark of Sumatra production.'
- qualifier_fidelity 0.90 pass — The claim is largely faithful to the passage. The quote is verbatim and supports the claim. All qualifiers are appropriate: viewpoint is correctly 'author' (passage states facts, not attributed to a named source), stance is 'asserts' (matches the factual presentation), sentiment is 'neutral' (appropriate for objective production data), and context is empty (passage does not restrict meaning to a particular sense). The time qualifier is nearly perfect, with 'when' correctly showing 'five years later' relative to 1852 and normalized dates of 1857. The only minor note is that 'five years later' is a relative temporal reference rather than an absolute one, but this is faithfully captured with the normalized dates 1857-1857. The quote fully supports the claim about the yield amount.
The total output in 1860 was 21,400,000 pounds
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'The total output in 1860 was 21,400,000 pounds' when discussing coffee production on the west coast of Sumatra. No rewording or inference is required.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (no named source in the passage). The stance is 'asserts' which matches the factual presentation. The sentiment is neutral, appropriate for a historical report of production figures. The time qualifiers are accurate: when, valid_from, and valid_to all correctly specify 1860. The context is empty, which is appropriate as the passage provides no restrictive sense or role qualification. The quote 'The total output in 1860 was 21,400,000 pounds' appears verbatim in the passage and directly supports the claim.
22,275,000 pounds in 1870
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage, which explicitly states: 'and 22,275,000 pounds in 1870' in reference to Sumatra coffee production, matching the subject, predicate, object, and time period specified in the claim.
- qualifier_fidelity 0.90 pass — The claim is largely faithful to the passage. All core qualifiers are correct: viewpoint, stance, sentiment, and time (1870) all match the passage accurately. The quote '22,275,000 pounds in 1870' appears verbatim and supports the claim. The only minor issue is that the context field is empty when the passage specifies this refers to 'The total output' on 'the west coast of Sumatra' - however, since the subject already identifies the location and the passage itself does not restrict this to a particular sense or role beyond geographic location, this is a minimal qualifier gap. The claim accurately reflects the passage's statement about Sumatra's coffee production in that year.
The average from 1875 to 1879 was 17,408,000 pounds
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'The average from 1875 to 1879 was 17,408,000 pounds' appears verbatim in the text discussing Sumatra coffee production.
- 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', sentiment is neutral, the time period (1875 to 1879) matches exactly with valid_from and valid_to dates correctly normalized, context is empty as appropriate since no restricted sense is given, and the quote appears verbatim in the passage supporting the claim about Sumatra's average production.
from 1895 to 1899, it was 7,589,000 pounds
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'from 1895 to 1899, it was 7,589,000 pounds' referring to Sumatra production averages. The subject, predicate, object, and time period are all explicitly supported without requiring outside knowledge or generalization.
- qualifier_fidelity 0.95 pass — The claim is largely faithful to the passage. All qualifiers are accurate: viewpoint ('author') is correct as the passage presents this as factual reporting; stance ('asserts') matches the passage's tone; sentiment ('neutral') is appropriate for statistical data; time ('1895 to 1899') is correctly stated with appropriate valid_from and valid_to dates; context is appropriately empty as the passage provides no restrictive context. The quote is verbatim from the passage. Minor deduction (0.05): The quote should be 'The average from 1895 to 1899 was 7,589,000 pounds' rather than 'from 1895 to 1899, it was 7,589,000 pounds' for complete accuracy, though the semantic content is captured correctly.
The yield was 5,576,000 pounds in 1900
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'The yield was 5,576,000 pounds in 1900' appears verbatim when discussing coffee production on the west coast of Sumatra, with all details (subject, predicate, object, and time) precisely matching the source text.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage itself makes this statement). The stance is 'asserts' which matches the factual tone of the passage. The sentiment is neutral, appropriate for a production statistic. The time qualifiers (when, valid_from, valid_to all set to 1900) accurately match the passage's temporal scope. The context is empty, which is appropriate as the passage restricts to a specific sense (coffee production) but the claim implicitly captures this through the predicate. The quote 'The yield was 5,576,000 pounds in 1900' appears verbatim in the passage and directly supports the claim about Sumatra's coffee production in that year.
1,360,000 in 1910
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage, which explicitly states 'The yield was 5,576,000 pounds in 1900; 1,360,000 in 1910; and 7,752,000 in 1915' in reference to Sumatra production.
- 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). The stance is properly 'asserts' as the passage states the fact directly. The sentiment is neutral, matching the factual tone. The time qualifiers (when, valid_from, valid_to all set to 1910) correctly match the temporal scope stated in the passage. The context is appropriately empty as the passage does not restrict coffee to a particular sense or role. The quote '1,360,000 in 1910' appears verbatim in the passage and directly supports the claim about Sumatra's yield in that year.
7,752,000 in 1915
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'The yield was 5,576,000 pounds in 1900; 1,360,000 in 1910; and 7,752,000 in 1915.' This explicitly confirms that the west coast of Sumatra yielded 7,752,000 pounds in 1915.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage presents these as factual historical records without attribution to a named source). The stance is properly marked as 'asserts' since the passage states the figure definitively. The sentiment is neutral, which matches the objective, factual tone of the passage. The time qualifiers correctly identify 1915 as both valid_from and valid_to, matching the passage's specific year. The context is appropriately empty since the passage does not restrict the claim to a particular sense or role. The quote '7,752,000 in 1915' appears verbatim in the final sentence of the Sumatra paragraph and directly supports the claim about production yield in that year.