-er -up b-p b-u bbb bbe bbg bbk bbl bbn bbp bbr bbu be- beb bee beg bek bel ben bep ber beu bgb bge bgg bgk bgl bgn bgp bgr bgu bkb bke bkg bkk bkl bkn bkp bkr blb ble blg blk bll bln blp blr blu bnb bne bng bnk bnl bnn bnp bnr bnu bpb bpe bpg bpl bpn bpp bpr bpu brb bre brg brk brl brn brp brr bru bub bue bug buk bul bun bup bur buu ebb ebe ebg ebk ebl ebn ebp ebr ebu eeb eee eeg eek eel een eep eer egb ege egg egl egn egp egr egu ekb eke ekg ekl ekp ekr eku elb ele elg elk ell eln elp elr elu en- enb ene eng enk enl enn enp enr enu ep- epb epe epg epl epn epp epr epu erb ere erg erk erl ern erp err eru eu- eub eue eug eul eun eup eur g-p gbe gbg gbk gbl gbn gbp gbr gbu ge- geb gee geg gek gel gen gep ger geu ggb ggg ggn ggp ggr ggu gkb gkn gkp glb gle glg glk gll gln glp glr glu gnb gne gnl gnn gnp gnr gnu gpb gpe gpg gpk gpl gpn gpp gpr gpu grb gre grg grk grl grn grp grr gru gu- gub gue gug guk gul gun gup gur guu kbb kbe kbk kbl kbn kbp kbr kbu ke- keb kee keg kek kel ken kep ker kgb kgl kgp kgu kkb kke kkk kkl kkn kkp kkr kku kl- klb klg klr klu kn- kne kng knk knl knn knp knr knu kpe kpk kpl kpn kpp kpr kpu krg krk krl krn krp krr kru kub kue kug kuk kul kun kup kur kuu l-p lbb lbe lbg lbk lbl lbp lbr lbu leb lee leg lek lel len lep ler leu lgb lge lgg lgk lgl lgn lgp lgr lgu lkb lkg lkl lkp lkr llb lle llg llk lll lln llp llr llu lnb lne lng lnk lnl lnn lnp lnr lnu lpb lpe lpg lpk lpl lpn lpp lpr lpu lrb lrg lrk lrn lrp lrr lru lub lue lug luk lul lun lup lur luu nbb nbe nbg nbk nbl nbn nbp nbr nbu ne- neb nee neg nek nel nen nep ner neu ngb nge ngg ngk ngl ngn ngp ngu nke nkk nkn nkp nkr nku nlb nle nlg nlk nll nln nlp nlr nlu nnb nne nng nnk nnl nnn nnp nnu npb npe npg npl npn npp npr npu nrb nre nrg nrk nrl nrn nrp nrr nru nub nue nug nuk nul nun nup nur nuu p-p pbb pbe pbg pbk pbl pbn pbp pbr pbu peb pee peg pek pel pen pep per peu pgb pge pgg pgk pgl pgn pgp pgr pkb pke pkg pkl pkn pkp pkr pku plb ple plg plk pll pln plp plr plu pn- pnb pne png pnk pnl pnn pnp pnr pnu ppb ppe ppg ppk ppl ppn ppp ppr ppu prb pre prg prk prl prn prp prr pru pub pue pug puk pul pun pup pur puu rbb rbe rbg rbk rbl rbn rbp rbr rbu re- reb ree reg rek rel ren rep rer reu rgb rge rgg rgk rgn rgp rgr rkb rke rkg rkk rkp rku rle rlg rll rln rlp rlr rlu rnb rng rnn rnp rnr rnu rpb rpe rpg rpk rpl rpn rpp rpr rpu rrb rrg rrk rrl rrn rrp rrr rru rub rue rug ruk run rup rur ruu ubb ube ubg ubk ubl ubn ubp ubr ubu ueb uee ueg uel uen uep uer ugb uge ugg ugk ugl ugn ugp ugr ugu ukb uke ukk ukl ukn ukp ukr uku ulb ule ulg ulk ull uln ulp ulr ulu un- unb une ung unk unl unn unp unr unu up- upb upe upg upk upn upp upr upu ur- urb ure urg urk url urn urp urr uru uue uug uun uur uuu