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]: " What's madness is that with a push of a button, they can knock us all out within seconds. "
[EX A]: Singular

[EX Q]: The Undead Guardian himself appeared to rock on his heels.
[EX A]: Singular

[EX Q]: Incredibly, the top hatch of the tank opened and a blond haired man stuck his head out.
[EX A]:
Singular