[Q] Given the sentence "A biker is riding a bike in the forest." is it true that "The biker is riding his bike in the street."?
[A] He can't be in the forest and in the street at the same time.
The answer is no.

[Q] If "Two dark-skinned parents look happily on their child in a park." does that mean that "A man proposing to his girlfriend."?
Options:
- yes
- it is not possible to tell
- no
[A] One can not be proposing and look on their child simultaneously.
The answer is no.

[Q] Given the sentence "A man in a helmet is holding on to a railing." is it true that "A man is holding onto a railing."?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
[A] The man is holding onto a railing because he is the man holding on to a railing.
The answer is yes.