-er b-u bbb bbe bbg bbh bbn bbr bbu be- beb bee beg beh ben ber beu bgb bge bgg bgh bgn bgr bgu bhb bhe bhg bhh bhr bhu bnb bne bng bnn bnr bnu brb bre brg brh brn brr bru bub bue bug buh bun bur buu ebb ebe ebg ebh ebn ebr ebu eeb eee eeg een eer egb ege egg egh egn egr egu ehb ehe ehg ehh ehn ehr ehu en- enb ene eng enh enn enr enu erb ere erg erh ern err eru eu- eub eue eug eun eur gbe gbg gbh gbn gbr gbu ge- geb gee geg geh gen ger geu ggb ggg ggh ggn ggr ggu ghb ghe ghg ghh ghn ghr gnb gne gnn gnr gnu grb gre grg grh grn grr gru gu- gub gue gug gun gur guu hbb hbe hbg hbh hbn hbr hbu he- heb hee heg heh hen her heu hgb hge hgg hgh hgn hgr hgu hhb hhe hhg hhh hhn hhr hhu hnb hne hng hnh hnn hnu hr- hrb hre hrg hrh hrn hrr hru hub hue hug huh hun hur huu nbb nbe nbg nbn nbr nbu ne- neb nee neg neh nen ner neu ngb nge ngg ngh ngn ngu nhb nhe nhg nhh nhn nhr nhu nnb nne nng nnh nnn nnu nrb nre nrg nrn nrr nru nub nue nug nuh nun nur nuu rbb rbe rbg rbh rbn rbr rbu re- reb ree reg reh ren rer reu rgb rge rgg rgh rgn rgr rh- rhb rhe rhg rhh rhn rhr rhu rnb rng rnh rnn rnr rnu rrb rrg rrh rrn rrr rru rub rue rug ruh run rur ruu ubb ube ubg ubh ubn ubr ubu ueb uee ueg ueh uen uer ugb uge ugg ugh ugn ugr ugu uhb uhe uhh uhr uhu un- unb une ung unh unn unr unu ur- urb ure urg urn urr uru uue uug uun uur uuu