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.

The two makeup authorities finally finished, stood back clucking in admiration of their work, and beamed at Alani.
Plural

Just a strip of tarmac lined either side by overhanging trees.
Singular

The distant cliffs reached the horizon, where a chemical factory with two metal chimneys tirelessly raced fat swirling worms of smoke into the sky.

Plural