A man teaches mathematics to a class.
The man is using a blackboard.
Based on the sentence "A man teaches mathematics to a class.", is the sentence "The man is using a blackboard." a true sentence?

Options: 

 - yes

 - it is not possible to tell

 - no
it is not possible to tell
Based on the sentence "A man teaches mathematics to a class.", is the sentence "The man is using a blackboard." a true sentence?

Options: 

 - yes

 - it is not possible to tell

 - no
user
it is not possible to tell
assistant