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.

Ex Input:
I couldn't see Russ anymore, couldn't even hear his screams over the grinding of the massive machine.

Ex Output:
Singular


Ex Input:
The one Casey lives with ? "

Ex Output:
Plural


Ex Input:
Her characters never had trouble keeping on track.

Ex Output:

Plural