In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.
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Question: He liked disgustingly healthy foods and ate a plain chicken breast and broccoli when the rest of us snacked on hot dogs and potato chips.

Answer: Plural


Question: Under his fingertips, he felt her pulse quicken as something loud crashed off in the direction of the stairwell, echoing down the corridors.

Answer: Singular


Question: and ethics ( If we didn't bite, would they have screwed us over yesterday ? )

Answer:
Plural