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]: Most visitors landed at a nearby regional airport or rented a car at some major airport, like Philadelphia.
[A]: Plural


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


[Q]: The footsteps have started up again.
[A]:
Plural