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


[Q]: " Hey, " the rogue called, walking up to me.
[A]: Singular


[Q]: Soon, the same male orderly came with a tray of food that I immediately opened and ate.
[A]:
Singular