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

Answer: Singular


Question: A clump of cobwebs sprouted from the rotten scalp, drifting slowly in the frozen wind.

Answer: Singular


Question: The residual effects of the shadow stone were subtly working on his wounds cleaning the blood, but not the tears from his face.

Answer:
Plural