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: Teeth grinding together against the anguish in his muscles, John hurled the wooden bat through one of the windows.

SOLUTION: Singular

PROBLEM: Dominique lifted his wineglass now and watched Michael over the rim.

SOLUTION: Plural

PROBLEM: That black, shiny hair that was twisted on the back of her head highlighted her delicate bone structure.

SOLUTION:
Singular