instruction: Is the next sentence syntactically and semantically acceptable?

The change pocketed.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

I think she is pregnant

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Benjamin said he would run away and he did.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Gabrielle's mother is an axe murderer.

response:
acceptable