Question and answer: Q: Given the sentence "A man is using a power tool to work on something." can we conclude that "He is fixing a boat."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Explanation: Using power tools to work on something doesn't mean a boat is being fixed.

Question and answer: Q: Given the sentence "A young girl sitting on a wooden chair." can we conclude that "A young girl is sitting at a table."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Explanation: One girl is sitting on a chair while the other is at a table.

Question and answer: Q: If "A young african woman stands on a beach holding up an octopus on a string." does that mean that "A young african woman holds up a octopus on a string at night."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Explanation:
Holding up an octopus does not imply that it is night.