Reconstruct a question, answer pair from this explanation: The boy may not be the girl's younger brother. The grass may not be a field.

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
Q:If "A boy and a girl hidden behind tall weeds of green grass." does that mean that "A girl and her younger brother are playing in a field of tall grass."?
Options:
- yes
- it is not possible to tell
- no
A:it is not possible to tell