instruction: Is the next sentence syntactically and semantically acceptable?

It seemed to be intelligent.
OPTIONS:
- unacceptable
- acceptable

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Someone attended every seminar.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Can Mary win the race and will Sue win the race too?
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

He has been happy
OPTIONS:
- unacceptable
- acceptable

response:
acceptable