Assertion: terrestrial planet | /r/HasProperty | the formation of the moon
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Source sentences:
text: They describe the discovery of the solar system, theories of its origin, how scientists constructed a timeline of the solar system and its major events, the role of meteorites, the chemical elements that make up the solar system, the birth of the Sun and the planets, how protoplanets became the terrestrial planets , the formation of the Moon, the development of life on Earth, the formation of giant planets, the asteroid belt between Mars and Jupiter, and objects in the outermost solar system.