William H. Ukers (author)
Landers, Frary & Clark's Universal percolator is patented in the United States
judge verdicts (2)
- groundedness 0.70 pass — The claim is substantially supported by the passage. However, there is a minor discrepancy: the passage states the Universal percolator was patented in 1901, but the claim's quote is actually listed under the 1901 entry in the passage, confirming the date is correct. The subject, predicate, and object are all directly stated with only minor rewording from the source material.
- qualifier_fidelity 0.80 pass — The claim is largely faithful to the passage. Viewpoint, stance, sentiment, and context are all correct. However, there is one qualifier error: the time is wrong. The passage states 'Landers, Frary & Clark's Universal percolator is patented in the United States' under the 1901 heading in the text provided, but actually reviewing carefully - this entry appears under the 1901 section in the passage. However, looking again at the passage structure, the Universal percolator entry is listed under 1901 in the visible text. Upon re-examination, this claim states 'when': 1901, but the passage clearly shows this entry is dated 1901. The time qualifier should be 1901, which matches. Actually, the score reflects a minor discrepancy: the quote provided is accurate and appears verbatim in the passage. All qualifiers are faithful to the passage as written.