-er b-u bbb bbe bbg bbh bbm bbr bbu be- beb bee beg beh bem ber beu bgb bge bgg bgh bgm bgr bgu bhb bhe bhg bhh bhm bhr bhu bmb bme bmg bmh bmm bmr bmu brb bre brg brh brm brr bru bub bue bug buh bum bur buu ebb ebe ebg ebh ebm ebr ebu eeb eee eeg eem eer egb ege egg egh egm egr egu ehb ehe ehg ehh ehm ehr ehu em- emb eme emg emh emm emr emu erb ere erg erh erm err eru eu- eub eue eug eur gbe gbg gbh gbm gbr gbu ge- geb gee geg geh gem ger geu ggb ggg ggh ggm ggr ggu ghb ghe ghg ghh ghr gmb gme gmg gmh gmm gmr grb gre grg grh grm grr gru gu- gub gue gug gum gur guu hbb hbe hbg hbh hbm hbr hbu he- heb hee heg heh hem her heu hgb hge hgg hgh hgm hgr hgu hhb hhe hhg hhh hhm hhr hhu hmb hme hmg hmh hmm hmr hmu hr- hrb hre hrg hrh hrm hrr hru hub hue hug huh hum hur huu m-r mbb mbe mbg mbh mbm mbr mbu meb mee meg meh mem mer meu mgb mge mgh mgm mgr mgu mhg mhh mhm mhr mhu mmb mme mmg mmh mmm mmr mmu mrb mre mrg mrh mrm mrr mru mub mue mug muh mum mur muu rbb rbe rbg rbh rbm rbr rbu re- reb ree reg reh rem rer reu rgb rge rgg rgh rgr rh- rhb rhe rhg rhh rhm rhr rhu rmb rme rmg rmh rmm rmr rrb rrg rrh rrm rrr rru rub rue rug ruh rum rur ruu ubb ube ubg ubh ubr ubu ueb uee ueg ueh uem uer ugb uge ugg ugh ugm ugr ugu uhb uhe uhh uhm uhr uhu um- umb ume umg umh umm umr umu ur- urb ure urg urm urr uru uue uug uum uur uuu