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: Ahead he could see two Agents, one on either side of the doors.

SOLUTION: Plural

PROBLEM: The mech wolves moved back, and the robots began to disperse.

SOLUTION: Plural

PROBLEM: The mate weighed anchor and the captain went into the wheelhouse and put the boat in gear.

SOLUTION:
Singular