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.

Q: Those deaths marked the final dark act to seal this tomb.

A: Plural
****
Q: The planes were overhead.

A: Plural
****
Q: " Flight # 408 now loading at gate 4B on the north concourse, " came over the loudspeaker.

A:
Singular
****