Task: Text Simplification
Input (English): 1979 to 1999 the jubilee line of 1979 was to be the first of four phases of the project , but lack of funds meant that no further progress was made until the late 1990s.
Output (English): from 1979 to 1999 the jubilee line of 1979 was to be one of the four phases of the project however no further progress was made until late 1990s due to lack of funds.