[Q] Given the sentence "A group of people are relaxing on the beach with their beach chairs and snacks." is it true that "A group of people are at the beach."?
[A] A group of people being on the beach is assumed because they are said to be already relaxing on the beach.
The answer is yes.

[Q] Test for natural language inference.
Premise: "A man with sunglasses and earphones is on a city street holding an mp3 player in his hand."
Hypothesis: "A guy is listening to music on his way to work."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] Holding an mp3 player does not necessarily mean listening to music.
The answer is it is not possible to tell.

[Q] Can we conclude from "A young woman is reading a novel in front of a row of sky blue washing machines." that "The woman is entertaining herself with a book."?
Options:
- yes
- no
- it is not possible to tell
[A] The woman is entertaining herself with a book because she is reading a book.
The answer is yes.