TASK DEFINITION: In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.
PROBLEM: " Digital audio recording on three separate hard discs, plus two analog tapes as backup.

SOLUTION: Singular

PROBLEM: And you froze my investments.

SOLUTION: Plural

PROBLEM: When he got to their news van he jerked the ignition wire out of their portable generator.

SOLUTION:
Singular