 Complete the following phrase:  The constituency is composed of architects, landscape architects, surveyors, and planners and the members of Hong Kong Institute of Architects, Hong Kong Institute of Landscape Architects, Hong Kong Institute of Surveyors, and Hong Kong Institute of Planners entitled to vote at the general meetings of the associations. As of 2020, there are 9,096 registered voters. It is one of the few swing seats contested between the pro-Beijing and pro-democracy camps. It was first won by independent democrat Yiu Chung-yim in 2016 in a three-way contest against two pro-Beijing candidates, defeating pro-Beijing incumbent Tony Tse, but 