Q: If "Four kayakers and canoers near a rock wall." does that mean that "Some people are about to go rock climbing."?
Options:
- yes
- it is not possible to tell
- no
A: Not all people near a rock wall are about to go rock climbing.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A male cuts a white cake with blue roses."
Hypothesis: "A groom cuts his wedding cake."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A male cuts a white cake with blue roses does not indicate that a groom cuts his wedding cake.
The answer is it is not possible to tell.

Q: If "A hockey player in a blue shirt scoring a goal against a team in white shirts." does that mean that "The other team is wearing black shirst."?
Options:
- yes
- it is not possible to tell
- no
A: A team cannot be wearing white shirts and black shirts simultaneously.
The answer is no.

Q: Given the sentence "A man playing a guitar while a couple is listening and watching another man dancing to the music." is it true that "The couple is watching a musical performance at the concert."?
A:
People can be listening to music and dancing without attending a musical performance.
The answer is it is not possible to tell.