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:
The front yard was several acres long.
answer:
Singular

question:
The fights were widespread and included both high schools and colleges.
answer:
Plural

question:
Strangers seemed to stare as if they knew Mike's past.
answer:
Plural