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 team members behind him follow his cue, not yet knowing what he sees.

A: Plural
****
Q: An old-school fuel gauge on the handlebars informed him that he had half a tank of petrol.

A: Singular
****
Q: A theory formed in my mind.

A:
Singular
****