Q: Test for natural language inference.
Premise: "A man with dreadlocks is playing with the hair of a woman who is sitting on a chair on a cobblestone street."
Hypothesis: "A couple are sitting in the old city."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A man playing with the hair of a woman on a cobblestone street doesn't necessarily imply couple and doesn't necessarily imply old city.
The answer is it is not possible to tell.

Q: If "A skateboarder doing a trick." does that mean that "A guy jumps in the air on his blue skateboard."?
Options:
- yes
- it is not possible to tell
- no
A: Not all skateboarders are a guy and not all tricks are jumps in the air and not all skateboarders use a blue skateboard.
The answer is it is not possible to tell.

Q: If "A volleyball player in an orange shirt jumps into the air to hit the ball." does that mean that "The man is spiking the ball."?
Options:
- yes
- it is not possible to tell
- no
A: Jumping to hit the ball does not mean he is spiking the ball.
The answer is it is not possible to tell.

Q: Given the sentence "A man sitting with his shoes off in an alley." can we conclude that "Someone is sitting on the sidewalk."?
Options:
- yes
- it is not possible to tell
- no
A:
Sitting in an alley does not imply sitting on the sidewalk.
The answer is it is not possible to tell.