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: Pictures of Rocky Mountain streams adorned the halls, and alternated with paintings of butterflies, frogs, and quiet ponds full of lilies.

Answer: Plural


Question: The boys shouted greetings to Adam and shared their bottle rockets with him.

Answer: Plural


Question: Around him he could see the other team members come to alert, their shoulders tensing, their hands flexing.

Answer:
Plural