Assertion: circle's area | /r/CapableOf | cover roughly 4% of earth's surface
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Source sentences:
text: The area north of the Circle is about 20,000,000 km2 (7,700,000 sq mi) and covers roughly 4% of Earth's surface.
text: The area south of the Circle is about 20,000,000 km2 (7,700,000 sq mi) and covers roughly 4% of Earth's surface.