Complex sentence: All the 48 seats were contested by Sarawak National Front (consisting of PBB and SUPP), 47 seats by SNAP, and 4 seats by BISAMAH.
Split into simpler sentences: All the 48 seats were contested by Sarawak National Front. A total of 47 seats was contested by Sarawak National Party (SNAP) and 4 seats by BISAMAH.