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.

It has a knob on top and may have with numbers on it. "
Singular

Her smile turned sly.
Plural

The videographer had submitted his recording claiming he'd witnessed a vampire fight, but no one gave it much credibility.

Singular