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: My eyelids are heavy, my fingers and toes sting with cold.

SOLUTION: Plural

PROBLEM: The government uses it to pay for any special service that doesn ´ t fit regular channels. "

SOLUTION: Singular

PROBLEM: No mortal on earth knew what he was.

SOLUTION:
Singular