William H. Ukers (author)
- Brazilian coffee increased to three-fourths of world total since the latter half of the nineteenth century to present ⟨present time⟩
has gradually increased since then to its present three-fourths
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage. The text explicitly says that Brazilian coffee 'has gradually increased since then to its present three-fourths,' referring to its proportion of world coffee exports increasing from about one-half in the mid-nineteenth century to three-fourths by the time of writing.
- qualifier_fidelity 0.85 pass — The claim is largely faithful to the passage. Viewpoint, stance, and sentiment are correct - the author asserts this neutrally. The quote is verbatim and supports the claim. However, there is a minor issue with the time qualifier: the passage states the proportion 'has gradually increased since then' (referring to the latter half of the nineteenth century) 'to its present three-fourths,' but does not provide a specific 'valid_from' date. The claim specifies 'valid_from: 1900', which is an interpretation not explicitly stated in the passage. The passage gives the comparison point as mid-nineteenth century (1852-53) and notes the increase occurred 'since then' and continues to 'present' without specifying 1900 as a start date. The 'valid_to: null' is appropriate since no end date is given. The context qualifier is appropriate. A more faithful approach would either omit the specific 1900 date or note it as an approximation not stated in the source.