sentences: the moon is a mean of stripe & the space revolves around the moon ->  the earth revolves around a star  the sun plant the space & space is a mean of sun ->  the moon orbits a planet  the moon orbits a planet & revolving around young orbiting ->  the moon revolves around a planet  the earth revolves around a star & the moon revolves around a planet -> the difference between the earth and the moon is that the moon revolves around a planet