Predicate: announcement
Roleset id: announcement.01 , say for all to hear, vncls: 37.7
Roles:
        Arg0: announcer
        Arg1: utterance
        Arg2: hearer
        Arg3: attributive
Example: autogen1
        a vitriolic U.S. response to Sony Corp. 's announcement of its
        purchase of Columbia Pictures Entertainment Inc.
        Arg2 : U.S.
        ArgSupport : response to
        Arg0 : Sony Corp. 's
        Rel : announcement
        Arg1 : of its purchase of Columbia Pictures Entertainment Inc.
Example: autogen2
        his withdrawal announcement
        Arg0 : his
        Arg1 : withdrawal
        Rel : announcement