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]: Her aura, which moments before was clear and bright, was suddenly cloudy with a burst of mustard color.
[A]: Singular


[Q]: The sleeper still slept.
[A]: Singular


[Q]: Thoughts of unimaginable medical leaps filled the doctor's head.
[A]:
Plural