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.

[Q]: The timbre of the engines climbed, and the Bell accelerated to its maximum speed.
[A]: Singular


[Q]: Ahead he could see two Agents, one on either side of the doors.
[A]: Plural


[Q]: Apart from the way she filled out the front of the shirt, boys' clothing went quite well on her slim, willowy figure.
[A]:
Singular