What is the rhyme scheme of this poem?

Pattern aa, bb, cc, dd for the entire poem. Each stanza ("paragraph") ends with their lines sounding the same, so the patterns are the same.

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The main themes in “The Lottery” are the vulnerability of the individual, the importance of questioning tradition, and the relationship between civilization and violence. The vulnerability of the individual: Given the structure of the annual lottery, each individual towns person is defenseless against the larger group.

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