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: His visage is indistinguishable beneath his hood, but his round eyes glow a pale green.

SOLUTION: Singular

PROBLEM: " The bastard went through the back bushes before I even got outside. "

SOLUTION: Singular

PROBLEM: Waves of ecstasy throbbed through him like blood rushing through veins, carrying precious oxygen to the heart.

SOLUTION:
Plural