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: Maks was not one of those selected to go and he approached the open passenger's - side window.

Answer: Plural


Question: This huge upright mass did not, however, rise directly from the sea.

Answer: Singular


Question: A strap would snag here, a buckle come loose there.

Answer:
Singular