Complex sentence: Amongst the ships built by the New England Shipbuilding Corporation is the SS Jeremiah O'Brien, one of only two surviving operational Liberty ships, which is now preserved as a museum ship in San Francisco.
Split into simpler sentences: Amongst the ships built by the New England Shipbuilding Corporation is the SS Jeremiah O'Brien, one of only two surviving operational Liberty ships. She is now preserved as a museum ship in San Francisco.