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.

Ex Input:
Still, guilt followed as thoughts of Eirik crossed my mind.

Ex Output:
Singular

Ex Input:
" Only girlfriends do that. "

Ex Output:
Plural

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

Ex Output:
Singular