With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Geosynchronous satellite orbits the earth at an altitude of less than 20,000 km .
text_B: Between those extremes lies the `` magic '' altitude of 3 miles ( 16,969 km ) at which a satellite 's orbital period matches , or is an integral part of , the period at which the Earth rotates : once every sidereal day ( 23 hours 56 minutes 4 seconds ) .
SUPPORTS.