In this task you are given a sentence. You must judge whether subject of the main clause is singular or plural. Label the instances as "Singular" or "Plural" based on your judgment.

" Unfortunately my functions are limited.
Plural

If he spun the wheel, the metal bars would shift inward a few inches, clearing the welded braces on both sides of the door.
Plural

The vortex allows water to run counter to the general flow direction, but is ultimately carried along by the current and dissipates.

Singular