Complex sentence: The election was declared Nigeria's freest and fairest presidential election by national and international observers, with Abiola even winning in his Northern opponent's home state.Abiola won at the national capital, Abuja, the military polling stations, and over two-thirds of Nigerian states.
Split into simpler sentences: The election was declared Nigeria's freest and fairest presidential election by national and international observers, with Abiola even winning in his Northern opponents home state. President-Elect Abiola won on the national capital, Abuja, the military polling stations, and over two-third's of Nigerian states.