TASK DEFINITION: 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.
PROBLEM: After what seemed an age, the actor sat up.

SOLUTION: Singular

PROBLEM: Those banks generally don't carry as much cash, but they usually don't have as many security guards, either. "

SOLUTION: Plural

PROBLEM: The small jagged bits of metal protruded between her fingers like claws.

SOLUTION:
Plural