Simplify the following text for a Grade 7 native English-speaking person.
Original: This Green Lantern was Hal Jordan , a test pilot who was given a power ring by a dying alien , Abin Sur , and who became a member of the Green Lantern Corps , an interstellar organization of police overseen by the Guardians of the Universe .
Simplified: Jordan was given his power ring by a dying alien named Abin Sur , whose spaceship had crashed on Earth . Jordan was a founding member of the Justice League of America and also a member of the Green Lantern Corps .