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: I even heard reports that people were burning dollar bills in Boston last month for heat ! "

SOLUTION: Plural

PROBLEM: I told the litter if we were going to earn a mountain climbing badge should actually climb a mountain.

SOLUTION: Singular

PROBLEM: What if he had some convincing proof ?

SOLUTION:
Singular