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

Answer: Singular


Question: A growl brought her attention to the remaining problem.

Answer: Singular


Question: Instantly, images of Aria shoving Tabitha off the roof of the hotel in Jamaica flashed in her mind.

Answer:
Plural