instruction: Is the next sentence syntactically and semantically acceptable?

Ellen complained about the situation to Helen.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The men would not have been all working.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The UN recommended an enlarged peacekeeping force.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Which man did you talk to?

response:
acceptable