Question: Which city's southern suburbs were the location of an electoral district which lost Labor-voting areas to Victoria Park, Canning and Welshpool, and became substantially safer for the major political party in Australia founded in 1945?
Sentence (from "Liberal Party of Australia"): Founded in 1945 to replace the United Australia Party (UAP), the broadly centre-right Liberal Party is one of the two major parties in Australian politics, along with the Australian Labor Party (ALP).
Relevant evidence: Yes