TASK DEFINITION: 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.
PROBLEM: The décor was exactly what you would expect in a diner.

SOLUTION: Singular

PROBLEM: His technique was one of confident expertise.

SOLUTION: Singular

PROBLEM: The hesitation of the advancing force vanished entirely, as nearly eight hundred throats erupted in a simultaneous bellow of raw hostility.

SOLUTION:
Singular