Assertion: memorial | /r/MadeOf | granite
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Source sentences:
text: Located almost due east of the Reflecting Pool and the Lincoln Memorial, the monument, made of marble, granite, and bluestone gneiss, is both the world's tallest predominantly stone structure and the world's tallest obelisk,[A] standing 554 feet 7 11⁄ 32 inches (169.046 m) tall according to the U.S. National Geodetic Survey (measured 2013–14) or 555 feet 5