In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.
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Question: He followed those telltale marks.

Answer: Plural


Question: Frantic, I shoved the covers away from her, tugging them free from her legs.

Answer: Plural


Question: It also made it air proof, which Winter had clearly used to his advantage.

Answer:
Singular