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.

[EX Q]: My tiny reflection in her eyes looked very pale.
[EX A]: Singular

[EX Q]: The van pulled up next to the plane.
[EX A]: Singular

[EX Q]: The initial goal was to force any invading force into the river canyon.
[EX A]:
Singular