William H. Ukers (author)
John Gordon & Co. began the manufacture in London of the line of plantation machinery still known around the world as "Gordon make" in 1850
judge verdicts (2)
- groundedness 1.00 pass — This claim is directly and fully supported by the passage. The exact statement 'John Gordon & Co. began the manufacture in London of the line of plantation machinery still known around the world as "Gordon make" in 1850' appears verbatim in the text, confirming all elements: the company name, the action (began manufacturing), the product name (Gordon make), the location (London), and the date (1850).
- 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' matches the passage's declarative framing. Sentiment is neutral, consistent with the factual tone. The time qualifier 'when': '1850' matches the passage exactly. The context 'London' is accurately specified. The quote is verbatim from the passage and directly supports the claim. No deductions required.