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: The healers were closely monitoring Branden's condition, and there was one in the reception room of his suite when they arrived.

Answer: Plural


Question: His technique was one of confident expertise.

Answer: Singular


Question: A kilt skidded to the floor at his feet, and he heard Helen's back as she hit the door.

Answer:
Singular