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:
" Hey, " the rogue called, walking up to me.

Ex Output:
Singular

Ex Input:
Your skills are impeccable, but this program involves strict discipline.

Ex Output:
Plural

Ex Input:
The boards creaked lightly beneath Martha's invisible weight.

Ex Output:
Plural