idchkg
An Unflattened Identity and Change Knowledge Graph

Jacob unspecified sense

person · 5 mentions

a Jew who opened the first coffee-house in Oxford

DBpedia ↗EthnicGroup

Other senses of “Jacob”

jew

Connections

The concepts, people, and places this entity is most linked to by claims — node size is mention count, colour is type, dashed nodes are other senses of the same word.

JacobJacob (jew)coffee house at the Angel in St. Peter in the East, Oxford — 1 shared claimRana esculenta — 1 shared claimRana temporaria — 1 shared claimcoffee house at the…Rana esculentaRana temporaria
Concept

Defining properties

Perspectives

Claims grouped by the voice that makes them.

bibliographic record

  • Jacob studied effects of caffeine on Rana esculenta 1908 ⟨comparative frog physiology⟩
    assertsneutralsource: coffee-pg28500
    JACOBJ, C., and GOLOWINSKI. Ein Beitrag zur Frage der verschiedenen Wirkung des Coffeins auf Rana esculenta und Rana temporaria.
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly supported by the bibliographic entry. The passage explicitly lists a publication by JACOBJ, C., and GOLOWINSKI from 1908 with a title indicating a study of caffeine's different effects on Rana esculenta and Rana temporaria, confirming Jacob studied caffeine effects on Rana esculenta in that year.
    • qualifier_fidelity 0.85 pass — The claim is largely faithful to the passage. Viewpoint, stance, sentiment, and time are all correct. However, there is a minor issue with the subject: the passage lists the author as 'JACOBJ, C., and GOLOWINSKI' (note the comma and 'and'), but the claim simplifies this to just 'Jacob'. While the spirit is correct, the complete and accurate representation should acknowledge both authors. The context 'comparative frog physiology' is appropriate and well-supported by the quote mentioning both Rana esculenta and Rana temporaria. The quote is verbatim and accurately supports the claim.
  • Jacob studied effects of caffeine on Rana temporaria 1908 ⟨comparative frog physiology⟩
    assertsneutralsource: coffee-pg28500
    JACOBJ, C., and GOLOWINSKI. Ein Beitrag zur Frage der verschiedenen Wirkung des Coffeins auf Rana esculenta und Rana temporaria.
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly supported by the passage. The bibliographic entry explicitly states that Jacob and Golowinski published a work in 1908 examining the different effects of caffeine on both Rana esculenta and Rana temporaria, exactly as claimed.
    • qualifier_fidelity 0.85 pass — Viewpoint is correct (bibliographic record), stance is correct (asserts), sentiment is correct (neutral), time is correct (1908), and context is appropriate (comparative frog physiology). The quote is accurate and supports the claim. Minor deduction: the subject should be 'JACOBJ, C., and GOLOWINSKI' (as presented in the passage) rather than just 'Jacob' for complete fidelity to the source attribution, though 'Jacob' is recognizable as a shortened form of JACOBJ.

William H. Ukers (author)

  • Jacob opened coffee house at the Angel in St. Peter in the East, Oxford 1650 ⟨earliest English coffee house⟩
    assertsneutralsource: coffee-pg28500
    In 1650, a certain Jew from Lebanon, in some accounts Jacob or Jacobs by name, in others Jobson[62], opened "at the Angel in the parish of St. Peter in the East", Oxford, the earliest English coffee house
    judge verdicts (2)
    • groundedness 0.70 pass — The claim is substantially supported by the passage. The passage states that in 1650, a person named Jacob (or Jacobs) from Lebanon opened a coffee house 'at the Angel in the parish of St. Peter in the East, Oxford,' described as 'the earliest English coffee house.' The minor rewording from the direct quote and the uncertainty about the name ('in some accounts Jacob or Jacobs by name, in others Jobson') accounts for the score not being perfect 1.0, but the core claim is directly stated.
    • qualifier_fidelity 0.85 pass — Viewpoint is slightly problematic: the passage uses 'author' as the viewpoint, but the statement about Jacob opening the coffee house comes directly from the passage itself (not attributed to a named external source), so 'author' is acceptable here. The stance 'asserts' is correct. Time qualifiers match the passage ('1650', valid_from '1650', valid_to null). Context correctly identifies it as 'earliest English coffee house'. However, there is a minor issue with subject specification: the passage presents uncertainty ('in some accounts Jacob or Jacobs by name, in others Jobson'), which the claim resolves to just 'Jacob' without acknowledging this ambiguity in the passage. The quote is verbatim and supports the claim. The claim passes but loses points for not capturing the passage's stated uncertainty about the subject's identity.

Change over time

1650
  • opened coffee house at the Angel in St. Peter in the East, Oxford
1908
  • studied effects of caffeine on Rana esculenta
  • studied effects of caffeine on Rana temporaria

Disagreements

studied effects of caffeine on …