Complex sentence: The GRC was formed in 1988 consists of Cheng San, Chong Boon and Jalan Kayu Constituency, in 1991 general election, the constituency was enlarged to the former Punggol Constituency.
Split into simpler sentences: The GRC was formed in 1988, and absorbed the constituencies of Cheng San, Chong Boon and Jalan Kayu. In the 1991 general election, the constituency was enlarged to include the former Punggol Constituency.