An older boy and a younger boy doesn't imply that they are brothers.
This justifies what answer for what question? Q & A: 
Given the sentence "An older boy drinks from a water fountain while a younger boy watches." can we conclude that "The boys are brothers."?
Options:
- yes
- it is not possible to tell
- no
it is not possible to tell
An older boy and a younger boy doesn't imply that they are brothers.
This justifies what answer for what question? Q & A: 
user
Given the sentence "An older boy drinks from a water fountain while a younger boy watches." can we conclude that "The boys are brothers."?
Options:
- yes
- it is not possible to tell
- no
it is not possible to tell
assistant
An older boy and a younger boy doesn't imply that they are brothers.
This justifies what answer for what question? Q & A: 
Given the sentence "An older boy drinks from a water fountain while a younger boy watches." can we conclude that "The boys are brothers."?
Options:
- yes
- it is not possible to tell
- no
it is not possible to tell