b-u bbb bbe bbg bbm bbo bbu be- beb bee beg bem beo beu bgb bge bgg bgm bgo bgu bmb bme bmg bmm bmo bmu bob boe bog bom boo bou bub bue bug bum buo buu ebb ebe ebg ebm ebo ebu eeb eee eeg eem eeo egb ege egg egm ego egu em- emb eme emg emm emo emu eo- eob eoe eog eom eoo eou eu- eub eue eug gbe gbg gbm gbo gbu ge- geb gee geg gem geo geu ggb ggg ggm ggo ggu gmb gme gmg gmm gmo gob goe gog gom goo gou gu- gub gue gug gum guo guu m-o mbb mbe mbg mbm mbo mbu meb mee meg mem meo meu mgb mge mgm mgo mgu mmb mme mmg mmm mmo mmu mob moe mog mom moo mou mub mue mug mum muu ob- obb obe obg obm obo obu oeb oee oeg oem oeo oge ogg ogo om- omb ome omg omm omo omu oo- oob oog oom ooo ou- oue oum ouo ubb ube ubg ubo ubu ueb uee ueg uem ugb uge ugg ugm ugo ugu um- umb ume umg umm umo umu uob uoe uog uom uoo uue uug uum uuu