Given the sentence "A chef is preparing food in a restaurant." is it true that "A chef is preparing food."?

yes
Explanation: A chef who is preparing food in a restaurant is a chef who is preparing food..

Can we conclude from "A dog with a large stick runs across the grass." that "A dog has a human leg in his mouth."?
Options:
- yes
- no
- it is not possible to tell

no
Explanation: A dog carrying a human leg in his mouth can't be carrying a large stick as well..

Premise: "Three young people standing outside of an open tailgate of a vehicle."
Hypothesis: "Three young people are by that vehicle."
Do we know that the hypothesis entailed by the premise?

it is not possible to tell
Explanation: The three young people are standing outside of an open tailgate of a vehicle but it is not necessarily that vehicle..

Given the sentence "Female sings into a mike while performing on stage." is it true that "Female sings into a hair brush while getting ready for bed."?
no
Explanation: One cannot sing into a mic and a hair brush simultaneously..