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 heavy gloom fell over Reuben.
answer:
Singular


question:
" Things have been different since your friends left.
answer:
Plural


question:
Trustworthy messengers who earn their money by ensuring the information they carry is accurate.
answer:

Plural