William H. Ukers (author)
Six others were granted to Charles Nelson, and assigned to S. Sternau & Co., in 1912 and 1913, for a percolator
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. The text explicitly states that 'Six others were granted to Charles Nelson, and assigned to S. Sternau & Co., in 1912 and 1913, for a percolator,' confirming that Charles Nelson was granted patents on percolators during those years.
- qualifier_fidelity 0.95 pass — The claim is largely faithful to the passage. All qualifiers are correct: viewpoint is author (the passage itself makes the assertion), stance is asserts, sentiment is neutral, time correctly specifies 1912 and 1913, context is appropriately empty since no specific sense restriction is mentioned, and the quote appears verbatim and supports the claim. Minor deduction only for context being empty string rather than null, which is a minor schema formatting difference but the substance is correct.