role

My neighbor was the lead role in last year's village play.

The role of women has changed significantly in the last century.

Local volunteers played an important role in cleaning the beach after the oil spill.

The project manager role is responsible for ensuring that everyone on the team knows and executes his or her assigned tasks.

Examining these verbs one by one, what one finds is that Auxiliary Selection does correlate in the expected way with the two kinds of optional transitivity, confirming that with each predicate, one semantic role has a fixed link with initial 1-hood, another with initial 2-hood.