Assertion: rock hyrax's foot | /r/HasProperty | 1,500 to 1,800 metres
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Source sentences:
text: The foothills, with elevations averaging between 6,000 and 7,000 feet (1,800 and 2,100 metres), descend in undulating slopes to the west, where the lowlands bordering Free State rise to elevations of 5,000 to 6,000 feet (1,500 to 1,800 metres).