Alliteration is the repetition of letters and sounds in a group of closely related words. The repetition of the 's' sound and letter in this poem impacts it in that;
The 's' repetition in this poem emphasizes the helplessness of the woman who rants on about the strange hand which was not like her son's.
The words that were repeatedly uttered by this woman are reflected in the consistency of the s sound.
Also, alliteration creates a rhyme that makes the lines appear as a single unit. These two effects were created by the author's use of alliteration.
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