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.

Input: Consider Input: Heather's attempts at getting him to listen never worked.

Output: Plural

Input: Consider Input: Names, characters, businesses, places, events and incidents are either the products of the author's imagination or used in a fictitious manner.

Output: Plural

Input: Consider Input: The possibilities of how these devices came to match one another are both frightening and too open ended to be discussed in this report.
Output: Plural