instruction: Is the next sentence syntactically and semantically acceptable?

Seven more came in after ten soldiers had left.
OPTIONS:
- unacceptable
- acceptable

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Ayala went to the ball and chatted to Jonathan Stubbs.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

There is believed to be a dragon in the wood.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The strong winds cleared the skies.
OPTIONS:
- unacceptable
- acceptable

response:
acceptable