"Labor organization" means any labor union or any organization or agency or employee representation, committee, or plan in which employees participate and which exists for the purpose, in whole or in part, of dealing with employers concerning grievances, labor disputes [...]

"Labor organization" means any organization of any kind or any agency or employee representation committee or plan in which employees participate and which exists for the purpose, in whole or in part, of dealing with employers concerning grievances, labor disputes, [...]

"Labor organization" means an organization of any kind; agents of such organization; an agency or employee representation committee, group, association, or plan in which employees participate and which exists for the purpose, in whole or in part, of dealing with [...]