instruction:
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.
question:
If he spun the wheel, the metal bars would shift inward a few inches, clearing the welded braces on both sides of the door.
answer:
Plural


question:
Soldiers with automatic guns waved them through and they drove past a long line of new arrivals waiting to register.
answer:
Plural


question:
At the foot of the wall cliffs dropped away on three sides.
answer:

Plural