Student asked: Can we conclude from "Children of all ages and their families congregate in the library." that "The people inside the library are being introduced to their new school by their principal."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. People insides a library are not assumed to be being introduced to their new school by their principal. The answer is it is not possible to tell.

Student asked: Premise: "Six young adults smiling in a group."
Hypothesis: "They are smiling because they won the game."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. A group may be smiling for reasons other then having won a game. The answer is it is not possible to tell.

Student asked: Premise: "A young boy wearing a black shirt."
Hypothesis: "Brown pants and a black watch has his hand on a white folded chair which is on the top of a large stack of similar folding chairs."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. A young boy stands next to a large stack of folding chairs. The answer is yes.

Student asked: Premise: "A man on crutches is reading the paper."
Hypothesis: "The man is outside a hospital."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. A man can have crutches and not be outside a hospital. The answer is it is not possible to tell.