Predicate: undulate
Frames file for 'undulate' based on survey of sentences in the WSJ
corpus.
Roleset id: undulate.01 , to move in a wavy pattern, vncls: 47.3
Roles:
        Arg0: cause of motion, agent
        Arg1: entity in motion
Example: intransitive
        person: ns,  tense: present,  aspect: ns,  voice: active,  form: full
        A man said [0] he saw the upper rim undulate .
        Arg1 : the upper rim
        Rel : undulate