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: Ten cases stood behind the barrel.

Answer: Plural


Question: The marine layer was far off the coast, giving the sun the opportunity to shine and the temperature to reach the high seventies.

Answer: Singular


Question: A single lamp hangs from the ceiling, the flickering fire emitting a purplish glow.

Answer:
Singular