Two men and a woman have a barbecue on a rooftop.
They are brother and sister.
Based on the sentence "Two men and a woman have a barbecue on a rooftop.", is the sentence "They are brother and sister." a true sentence?

Options: 

 - yes

 - it is not possible to tell

 - no
it is not possible to tell
Based on the sentence "Two men and a woman have a barbecue on a rooftop.", is the sentence "They are brother and sister." a true sentence?

Options: 

 - yes

 - it is not possible to tell

 - no
user
it is not possible to tell
assistant