TASK DEFINITION: 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.
PROBLEM: The consultant merely raised an eyebrow.

SOLUTION: Singular

PROBLEM: Ahead of the ship, the relatively calm seas were washing against slate grey rocks that rose seven or eight feet up out of the waters.

SOLUTION: Plural

PROBLEM: Girls taken and forced to fulfill the most deviant desires for the most preserve patrons.

SOLUTION:
Plural