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: Sadness tinged her smile this time.

Answer: Plural


Question: As though the numerous pairs acted as one, the blades began to spin and then fly toward him.

Answer: Plural


Question: The absence of flowers piqued Denise's curiosity.

Answer:
Singular