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.
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Question: A little bothered, Zane slid his empty sandwich wrapper in his bag and stood up, pacing away to the edge of the clearing.

Answer: Singular


Question: The back yard was essentially a long sweeping lawn with pockets of ruddy sand dunes and rocks running into the wild ocean.

Answer: Singular


Question: Our species are compatible.

Answer:
Plural