In this task you are given a sentence. You must judge whether subject of the main clause is singular or plural. Label the instances as "Singular" or "Plural" based on your judgment.

Q: The mech wolves moved back, and the robots began to disperse.

A: Plural
****
Q: My father-in-law was so right when he asked me to wait a little with the police.

A: Singular
****
Q: Dr. Schwartz's pen clicked and she wrote something for a moment before speaking.

A:
Singular
****