SRL for [trailing]: " The year before last its total exports were third on the mainland , [trailing] only Shenzhen 's and Shanghai 's , " says Jiang Suwu , a graduate of Wuhan University 's Chinese department who came south to work in the planning department of a Taiwan firm in Dongguan .
ARG-0: its total exports | ARG-1: only Shenzhen 's and Shanghai 's