instruction: Is the next sentence syntactically and semantically acceptable?

John will endorse the treaty, but Georges will not endorse the treaty.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The more we study verbs, the crazier they get.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Tom seems eager to catch a cold.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Bob proved that this set is recursive.

response:
acceptable