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: A giggle erupted out my mouth and I shifted my eyes from Larissa who was looking up at Marcus expectedly.

SOLUTION: Singular

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

SOLUTION: Plural

PROBLEM: Upstairs, safely inside, I locked the six locks on the door and pushed a table in front of the door.

SOLUTION:
Plural