Here’s the matching of each part of the preamble with its possible meaning:
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"...that all men are created equal..." - All men should be treated fairly.
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"...that they are endowed by their creator with certain unalienable rights..." - They have been permanent right by god.
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"...that among these are life, liberty, and the pursuit of happiness" - These rights include life, freedom, and the chance to achieve their goals.