-er -up a-a a-b a-t aaa aab aae aaf aan aap aar aat aau ab- aba abb abe abf abn abp abr abt abu aea aeb aee aef aen aep aer aet aeu af- afa afb afe aff afn afp afr aft afu an- ana anb ane anf ann anp anr ant anu ap- apa apb ape apf apn app apr apt apu ar- ara arb are arf arn arp arr art aru at- ata atb ate atf atn atp atr att atu au- aua aub aue auf aun aup aur aut b-p b-u baa bab bae baf ban bap bar bat bau bba bbb bbe bbf bbn bbp bbr bbt bbu be- bea beb bee bef ben bep ber bet beu bfa bfb bfe bff bfn bfp bfr bft bfu bna bnb bne bnf bnn bnp bnr bnt bnu bpa bpb bpe bpf bpn bpp bpr bpt bpu bra brb bre brf brn brp brr brt bru bta btb bte btf btn btp btr btt btu bua bub bue buf bun bup bur but buu eaa eab eae eaf ean eap ear eat eau eba ebb ebe ebf ebn ebp ebr ebt ebu eea eeb eee eef een eep eer eet ef- efa efb efe eff efp efr eft en- ena enb ene enf enn enp enr ent enu ep- epa epb epe epf epn epp epr ept epu era erb ere erf ern erp err ert eru eta etb ete etf etn etp etr ett etu eu- eua eub eue euf eun eup eur eut faa fab fae faf fan fap far fat fau fba fbb fbe fbf fbn fbp fbr fbt fbu fea feb fee fef fen fep fer fet feu ffa ffe fff ffn ffp ffr fft ffu fna fnb fne fnf fnn fnp fnr fnt fnu fpa fpb fpe fpn fpp fpr fpt fpu fra frb fre frf frn frp frr frt fru fta ftb fte ftf ftn ftp ftr ftt ftu fua fub fue fuf fun fup fur fut fuu naa nab nae naf nan nap nar nat nau nba nbb nbe nbf nbn nbp nbr nbt nbu ne- nea neb nee nef nen nep ner net neu nfa nfb nfe nff nfn nfp nfr nft nfu nna nnb nne nnf nnn nnp nnt nnu npa npb npe npf npn npp npr npt npu nra nrb nre nrf nrn nrp nrr nrt nru nta ntb nte ntf ntn ntp ntr ntt ntu nua nub nue nun nup nur nut nuu p-p paa pab pae paf pan pap par pat pau pba pbb pbe pbf pbn pbp pbr pbt pbu pea peb pee pef pen pep per pet peu pfa pfb pfe pff pfn pfp pfr pft pfu pn- pna pnb pne pnf pnn pnp pnr pnt pnu ppa ppb ppe ppf ppn ppp ppr ppt ppu pra prb pre prf prn prp prr prt pru pt- pta ptb pte ptf ptn ptp ptr ptt ptu pua pub pue puf pun pup pur put puu ra- raa rab rae raf ran rap rar rat rau rba rbb rbe rbf rbn rbp rbr rbt rbu re- rea reb ree ref ren rep rer ret reu rfa rfb rfe rff rfn rfp rfr rft rfu rna rnb rnn rnp rnr rnt rnu rpa rpb rpe rpf rpn rpp rpr rpt rpu rra rrb rrf rrn rrp rrr rrt rru rta rtb rte rtf rtn rtp rtr rtt rtu rua rub rue ruf run rup rur rut ruu taa tab tae taf tan tap tar tat tau tba tbb tbe tbf tbn tbp tbr tbt tbu te- tea teb tee tef ten tep ter tet teu tfa tfb tfe tff tfn tfp tfr tft tfu tna tnb tne tnf tnn tnp tnr tnt tpa tpb tpe tpf tpn tpp tpr tpt tpu tra trb tre trf trn trp trr trt tru tta ttb tte ttf ttn ttp ttr ttt ttu tua tub tue tuf tun tup tur tut tuu ua- uaa uab uae uaf uan uap uar uat uau uba ubb ube ubf ubn ubp ubr ubt ubu uea ueb uee uef uen uep uer uet ufa ufe uff ufn ufp ufr uft ufu un- una unb une unf unn unp unr unt unu up- upa upb upe upf upn upp upr upt upu ur- ura urb ure urf urn urp urr urt uru uta utb ute utf utn utp utr utt utu uua uue uun uur uut uuu