Complex sentence: For a brief moment Kyle lost the white ring to Sinestro and then to the new Green Lantern of Earth, Simon Baz, however the ring soon returned to him after finding the two former lanterns unsuitable as hosts.
Split into simpler sentences: For a brief moment Kyle lost the white ring to Sinestro and then to the new Green Lantern of Earth Simon Baz. However the ring soon returned to him after finding the two former lanterns unsuitable as hosts.