instruction:
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.
question:
A mass of recruits had already gravitated to the Whites.
answer:
Singular


question:
" Some kind of criminal, I guess, " scoffed the sergeant.
answer:
Singular


question:
The only option she had was to get the robe herself.
answer:

Singular