Given the sentence "Javelin thrower wearing a dark shirt and preparing to throw." is it true that "A javelin thrower is practicing for a meet."?

it is not possible to tell
Explanation: The javelin thrower is preparing to throw but that doesn't necessarily mean that the javelin thrower is practicing for a meet..

Premise: "A brunette woman with a black shirt and blue jeans is sitting on a motorcycle."
Hypothesis: "With a few people around her."
Do we know that the hypothesis entailed by the premise?

it is not possible to tell
Explanation: A woman is waiting for someone to join her on the bike..

Premise: "A man in a helmet."
Hypothesis: "Coat and black pants is riding a bicycle and carrying a shoulder bag."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

yes
Explanation: A man is riding a bike with something on his back..

Premise: "A man is using a jackhammer to work on a sidewalk."
Hypothesis: "A man is working on a sidewalk."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
yes
Explanation: Working on a sidewalk is a rephrasing of using a jackhammer to work on a sidewalk..