Student asked: Given the sentence "A woman bicycles down the hill on a dirt trail." is it true that "The woman is on a bike riding excursion with her friends."?
Teacher's response: Let's think. It is not possible to know if a woman is alone or with friends from the first sentence alone. The answer is it is not possible to tell.

Student asked: Premise: "A small boy is chewing on a pen."
Hypothesis: "A young child has a pen in his mouth."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. Young is often used as a synonym for small. The boy has the pen in his mouth. You chew with your mouth. The answer is yes.

Student asked: Test for natural language inference.
Premise: "A man in a red plaid shirt holds on for dear life as the horse tries to throw him off."
Hypothesis: "A man on a bucking bronco."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A man on a horse who tries to throw him off is on a bucking bronco. The answer is yes.

Student asked: If "A toddler in overalls has a white powder on his clothing and the floor." does that mean that "A small child is covered with a white powder."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. If a child is covered with a white powder then the powder is on his clothing and the floor. The answer is yes.