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.

Example Input: The monitor's beeping dove from a constant beep to deep electronic thuds.
Example Output: Singular

Example Input: The only option she had was to get the robe herself.
Example Output: Singular

Example Input: Questions pop into my head, but I hardly know where to start.
Example Output:
Plural