SRL for [halved]: Among them are the shipbuilders , which had [halved] their shipyard work forces to cut costs during a prolonged slump in demand but now are capturing an increased share of the strengthening global market .
ARG-0: the shipbuilders | R-ARG-0: which | ARG-1: their shipyard work forces | ARG-M-PNC: to cut costs | ARG-M-TMP: during a prolonged slump in demand