Assertion: gerbil's foot | /r/HasProperty | 180 to 240 metres
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Source sentences:
text: Nearby is another insular range, surrounded on all sides by massifs of moving sands; Rosstagh Mountain, also known as Tokhtakaz Mountain, reaches an elevation of 5,117 feet (1,560 metres), and the range rises from 600 to 800 feet (180 to 240 metres) above the plain.