Final answer:
Parallelism involves using similar grammatical structures to create balance and rhythm within a sentence, as seen in John F. Kennedy's inaugural address.
Explanation:
Parallelism is the phenomenon where similar grammatical structures are used in related words, clauses, or phrases within a sentence. It creates a sense of rhythm and balance, enhancing the impact of the message being conveyed. An example of parallelism is seen in John F. Kennedy's inaugural address with the repetition of phrases like 'pay any price, bear any burden, meet any hardship,' showcasing the technique's use for rhetorical effect.
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