Complex sentence: In 1992 the National Trust for Historic Preservation listed the hotel as one of America's most endangered places and the Historic Landmarks Foundation of Indiana (HLFI) matched an anonymous $70,000 donation to pay for work to stabilize the main structure.
Split into simpler sentences: In 1992 the National Trust for Historic Preservation listed the hotel as one of America's most endangered places. That same year the Historic Landmarks Foundation of Indiana (HLFI) matched an anonymous $70,000 donation to pay for work to stabilize the main structure.