Complex sentence: In 1996, the Tai Po Lookout was leased to the SAC and the organization planned to implement the Lookout Project as a measure to tackle with the lack of facilities for hospice care for AIDS patients when AIDS treatment was not mature.
Split into simpler sentences: In 1996, the Tai Po Lookout was leased to the SAC. The organization planned to implement the Lookout Project as a measure to tackle with the lack of hospice facilities when AIDS treatment was not mature.