Generative lexicon theory (GL) establishes three mechanisms at work when a predicate selects an argument, i.e. pure selection, accomodation and type coercion. type are widely used in verbal selection of [N1+event noun) type NN compounds. this paper extends the usage of these mechanisms in two ways: 1) the eventive nominal modifier, and 2) their use in the eventive domain, through the case study on [N1+ bisai 'competition']. moreover, it reveals a new compositional mechanism sub-composition. it also discovers the domain contribution in type coercion. this work encriches the study on compositionality and GL.