instruction: Is the next sentence syntactically and semantically acceptable?

He muttered that the visitors will leave.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

He is afraid of foxes.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

What Jason asked whether was the potion was ready

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Tom offered advice to his students with love.

response:
acceptable