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]: I can't float it up now, the turbulence up there must be terrific !'
[A]: Singular


[Q]: The cockpit rocked again, throwing him against his harness.
[A]: Singular


[Q]: The senator wasn't working alone.
[A]:
Singular