Q: Given the sentence "Burly warehouse worker giving the victory sign." is it true that "An on duty warehouse worker gives a victory sign."?
A: Just because a warehouse worker flashes a victory sign doesn't mean he is on duty. He may flash the victory sign at the end of the work day while he is leaving work.
The answer is it is not possible to tell.

Q: Premise: "A man is eating a piece of corn on the cob."
Hypothesis: "The man is at a picnic."
Do we know that the hypothesis entailed by the premise?
A: A man is eating a piece of corn on the cob does not indicate that he is at a picnic.
The answer is it is not possible to tell.

Q: If "A man sitting on a boat in the middle of the ocean." does that mean that "A lady is sitting in a boat at the shore."?
Options:
- yes
- it is not possible to tell
- no
A: Either a man is in the middle of the ocean or a woman is is a shore.
The answer is no.

Q: Premise: "Kids playing at a playground on a stack of tires."
Hypothesis: "Playgrounds never have accidents."
Do we know that the hypothesis entailed by the premise?
A:
Playing on a stack of tires will almost certainly cause an accident at the playground.
The answer is no.