[Q] Given the sentence "A man gives a presentation to a crowded room." is it true that "A man is nervous."?
[A] Not every man who presents to a crowded room is nervous.
The answer is it is not possible to tell.

[Q] Given the sentence "A woman is working on a craft." is it true that "A group of women watch soap operas."?
[A] One woman verses a group of women and; craft verses soap opera.
The answer is no.

[Q] Given the sentence "An old man in glasses is looking around and a young child in red is sitting on the ground." is it true that "A child and his grandpa are spending time together."?
[A] The old man and young child may not be related in sentence 1.
The answer is it is not possible to tell.