What was the question for this implicit rationale, and corresponding answer?
Two men are sitting in chairs and looking at books does not imply that they reading books about how to hit on other men at the library.
 The answer: it is not possible to tell
The question: Premise: "Two men are sitting in chairs and looking at books."
Hypothesis: "Two men reading books about how to hit on other men at the library."
Do we know that the hypothesis entailed by the premise?