Complex sentence: Davison won a seat on the Hamilton City Council in 1982, and returned to the provincial legislature in a 1984 by-election, which held after Copps resigned her legislative seat to campaign for the Canadian House of Commons.
Split into simpler sentences: Davison won a seat on the Hamilton City Council in 1982, and was returned to the provincial legislature in a 1984 by-election. The 1984 contest was held after Copps resigned her legislative seat to campaign for the Canadian House of Commons.