bbbb bbeb bbet bbrg bebb bebe beeb beeg beer beet begg bere berg berr bert bete bett betv betz bevz beze breb bree breg brer bret brev brez brrr btrt bttb bzer bzzt bzzz ebbr eber eeee eerg eete eeze egbe egee eger eggb egge egre egte erbb erbe ereb erer eret erev erez erg- ergg erre ertz erve etbr etee eter etre ette ever evet evre ezer eztv gebe geer geet geez gege gegg gerb gere gert getb gete getg gett getz geve ggbt gggg grbr greb gree greg gret grev grez grrr grve gtbr gvtv gvvv rbbb rbbr rebb rebe reeb reet reev rege regr regt rere rerg rert rete retr rett retz reve reze rgbe rgtr rrrr rtee rtve rver tbrb teer teet teev teez tegg tegt ter- tere terr tete tetr tett tetz tezz tre- tree treg tret trev trez trge trte trtr ttbb tter tttt tver tvrr tvtv tzzt vbrg veer veet vege ver- verb vere vert vete vetr veve veze vezt vret vver vvvv zber zebe zegg zerg zert zete zeve zeze zrze zzzz