When "bushi","jiushi" co-occur in adjacent clauses,sometimes they collocate and sometimes they don' t. In the situation of collocation, the pattem "bushiA,jiushiB" has two logical meanings,which are selective and juxtaposition. From the computing perspective,finding the constraint conditions which restrict the collocative of two markers and the features that distinguish two logical meanings is need in order to make computer un- derstand this pattern. In this paper, there are three constraint conditions that could decide whether "bushi"...