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: " The usual suspects manned the barricades, and they pelted us with stones and bricks.

A: Plural
****
Q: These creatures are often crazed and power-hungry.

A: Plural
****
Q: Row upon row of plaques adorn the walls.

A:
Singular
****