instruction: Is the next sentence syntactically and semantically acceptable?

He's too reliable a man.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

I believe that the world is round strongly.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

What do you think the man who is standing by the door is doing now?

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Heidi said that pictures of herself were embarrassing.

response:
acceptable