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]: Your skills are impeccable, but this program involves strict discipline.
[A]: Plural


[Q]: The thud of his head connecting with the glass caused a satisfying crunching sound.
[A]: Singular


[Q]: The bars blocked his path.
[A]:
Plural