Roleset become.01 Verbnet Class: NONE "change of state":

Roles:

Arg1:entity changing


Arg2:new state

Examples:

person: ns tense: present aspect: perfect voice: active form: participle


all examples look like this (-)
Plans that give advertisers discounts for maintaining or increasing ad spending have become permanent fixtures at the news weeklies and underscore the fierce competition between Newsweek, Time Warner Inc.'s Time magazine, and Mortimer B. Zuckerman's U.S. News & World Report.
Arg1:	Plans that give advertisers discounts for maintaining or increasing ad spending
REL:	become
Arg2:	permanent fixtures at the news weeklies

Roleset become.02 Verbnet Class: NONE "bogus interpretation":

Roles:

Examples:

person: ns tense: ns aspect: ns voice: ns form: ns
This is properly not a verb at all, but it will almost certainly by misparsed as one. It has no argument structure.

bogus example (-)
That dress is very becoming on John.