Complex sentence: In 1956, the Telangana region was merged with Andhra State to form Andhra Pradesh State; however, in 2014 this area was split off again to form a separate State.
Split into simpler sentences: In 1956, the Telangana region was merged with Andhra State to form Andhra Pradesh State. However, in 2014 this area was split off again to form a separate State.