Predicate



Frameset: f1

   ARG0: agent
   ARG1: thing arg0 investigates and finds out

Frame:

 (NP-SBJ (-NONE- *pro*))
(VP (VV 纠)
    (NP-OBJ (NP (PN 其))
	    (NP (NN 原因))))) 

ARG0: *pro*
ARG1: 其 原因
REL:  纠