idchkg
An Unflattened Identity and Change Knowledge Graph

terra roxa soil type

concept · 1 mention

Red clay topsoil found in Brazil, suitable for coffee cultivation

Other senses of “terra roxa”

soil

Defining properties

Perspectives

Claims grouped by the voice that makes them.

William H. Ukers (author)

  • terra roxa is known as best soil ⟨Brazil⟩
    assertspositivesource: coffee-pg28500
    In Brazil the best soil is known as _terra roxa_
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'In Brazil the best soil is known as _terra roxa_'. This is an exact match of the source material with no added interpretation or outside knowledge required.
    • qualifier_fidelity 0.90 pass — The claim is largely faithful to the passage. The viewpoint, stance, sentiment, time, context, and quote are all accurate. However, there is a minor issue with the object value: the passage states terra roxa is 'the best soil' (with additional descriptive detail about its composition), whereas the claim simplifies this to just 'best soil'. The quote itself is verbatim and accurate, and all qualifiers match the passage's presentation. This is a very minor semantic distinction that does not substantially affect the fidelity of the claim.
  • terra roxa consists of red clay topsoil three or four feet thick with gravel subsoil ⟨Brazil⟩
    assertsneutralsource: coffee-pg28500
    a topsoil of red clay three or four feet thick with a gravel subsoil
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage. The text explicitly defines terra roxa as 'a topsoil of red clay three or four feet thick with a gravel subsoil' in the context of Brazil's best coffee soil.
    • qualifier_fidelity 0.85 pass — The claim is largely faithful to the passage. The viewpoint is appropriately attributed as 'author' since the passage presents this as general knowledge about Brazilian soil rather than attributing it to a named source. The stance 'asserts' and sentiment 'neutral' are correct. The time qualifiers are properly null since the passage provides no temporal scope. The context 'Brazil' is accurate and appropriately specified. However, there is a minor issue with the quote: the passage states 'a topsoil of red clay three or four feet thick with a gravel subsoil,' but the claim's object description adds the word 'consists of' within the quote attribution when the actual verbatim quote in the passage is just the descriptive phrase. The quote should be exactly as it appears: 'a topsoil of red clay three or four feet thick with a gravel subsoil' without the 'consists of' language, which is properly captured by the predicate instead.