"Kaplan said he met Lukas Walton about seven years ago while working as director of sustainability for Walmart. "

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"Snap Inc. founders Evan Spiegel and Bobby Murphy, as well as China's Wang Ning are the only other self-made billionaires under the age of 35 among the world's 500 richest, while U.K. aristocrat Hugh Grosvenor and Walmart Inc. heir Lukas Walton hold the sole inherited fortunes in the group."

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