instruction:
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.
question:
Under his fingertips, he felt her pulse quicken as something loud crashed off in the direction of the stairwell, echoing down the corridors.
answer:
Singular


question:
Only a small percentage of stars had developed planetary systems, and of these only a small percentage were even capable of supporting life.
answer:
Plural


question:
She heard the rasp of the zipper and felt her dress slither downward, exposing to his gaze that she wasn't wearing a bra.
answer:

Singular