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: Inside the box was a pencil -- a yellow, wooden pencil, with a graphite lead.

Answer: Singular


Question: His thrusts strengthened as the animal in him gradually broke free of its cage.

Answer: Plural


Question: " When this is on the road, " Rhys said straightening, " someone approaching is going to think that a sinkhole has split the concrete.

Answer:
Plural