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: Do you have any proof ?

Answer: Singular


Question: " We could use cables from the solar farm as guy lines. "

Answer: Plural


Question: The birds around her were singing their hearts out in a kind of ecstatic adoration.

Answer:
Plural