instruction: Is the next sentence syntactically and semantically acceptable?

John is eager to examine.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Merlin is extremely evil.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The witch went into the forest by vanishing.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The strong winds cleared the skies.

response:
acceptable