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: Lena's posture improved as she spoke.

Answer: Singular


Question: Mrs. Dawson's heart leapt and Helen let go of her hands to circle protective arms around her.

Answer: Singular


Question: And there was a third siren, yes.

Answer:
Singular