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.

The copper haired girl sat up chuckling.
Singular

Their shared orgasm left them spent and still connected, hugging each other while their breathing slowly returned to normal.
Singular

The iron was warm on my back, but the air crisp and clean.

Singular