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 email, as it was open and apparently unfinished, could have easily been a clue as to the whereabouts of General White and his family.
Example Output: Singular

Example Input: The fellow on the left, " I said.
Example Output: Singular

Example Input: This warrior had killed the man chained to me.
Example Output:
Singular