Predicate 偶一为之


Frameset: f1

   ARG0: entity described
   ARG1: thing arg0 does once in a while

Frame:

 (IP (NP-SBJ (-NONE- *pro*))
  (VP (ADVP (AD 只))
      (VP (VV 能)
	  (VP (VV 偶一为之)))))

ARG1: *pro*
ARGM-ADV: 只
REL:  偶一为之