Complex sentence: Despite the hospital's policy, they, John Miner, and the state consented and the Riglers were made temporary foster parents; although they initially intended the arrangement to last for three months at most, Genie ultimately stayed there for four years.
Split into simpler sentences: Despite the hospital's policy, they, John Miner, and the state consented and the Riglers were made temporary foster parents. Although they initially intended the arrangement to last for three months at most, Genie ultimately stayed there for four years.