Workers on a roof install new shingles.
The workers on the roof are riping off shingles.
Is the premise "Workers on a roof install new shingles." true if "The workers on the roof are riping off shingles."?

Options: 

 - yes

 - it is not possible to tell

 - no
no
Is the premise "Workers on a roof install new shingles." true if "The workers on the roof are riping off shingles."?

Options: 

 - yes

 - it is not possible to tell

 - no
user
no
assistant