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]: Her designs were good.
[A]: Plural


[Q]: Several members of the bridge club came over and greeted them, welcoming Gracie into the fold.
[A]:
Plural