Predicate: invitation
Roleset id: invitation.01 , invite, summon, vncls:
Roles:
        Arg0: inviter
        Arg1: action
        Arg2: recipient
Example: autogen1
        they were in this country at the invitation of President Reagan
        Arg2 : they
        Arg1 : in this country
        Rel : invitation
        Arg0 : of President Reagan
Example: autogen2
        invitations to the best parties
        Rel : invitations
        Arg1 : to the best parties