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Block 4: Past tense reasoning

Definition 5:


“{proper noun 1} was a/an/the {singular noun} of {proper noun 2}”
from which can be concluded
“{proper noun 2} has no {singular noun} anymore


“{proper noun 1} was a/an/the {singular noun} of {proper noun 2}”
from which can be concluded
“{proper noun 2} had a/an {singular noun}, called {proper noun 1}”


Example:


Variables: proper noun 1 = “James”, proper noun 2 = “Peter”, singular noun = “father

> Given: “James was the father of Peter.”

• Generated conclusions:
< “Peter has no father anymore.”
< “Peter had a father, called James.”


Definition 6:


Every {singular noun 1} is a/an {singular noun 2}”
and
“{proper noun} was a/an {singular noun 1}” 1
from which can be concluded
“{proper noun} was a/an {singular noun 2}”


Example:


Variables: singular noun 1 = “father”, singular noun 2 = “man”, proper noun = “James

> Given: “Every father is a man.”

• Generated conclusion:
< “James was a man.”


1 Sentence “James was the father of Peter” of the previous example should be recognized as “James was a father”.