-up a-a a-b a-t aaa aab aan aap aar aas aat aau ab- aba abb abn abp abr abs abt abu an- ana anb ann anp anr ans ant anu ap- apa apb apn app apr aps apt apu ar- ara arb arn arp arr ars art aru as- asa asb asn asp asr ass ast asu at- ata atb atn atp atr ats att atu au- aua aub aun aup aur aus aut b-p b-u baa bab ban bap bar bas bat bau bba bbb bbn bbp bbr bbs bbt bbu bna bnb bnn bnp bnr bns bnt bnu bpa bpb bpn bpp bpr bps bpt bpu bra brb brn brp brr brs brt bru bsa bsb bsn bsp bsr bss bst bsu bta btb btn btp btr bts btt btu bua bub bun bup bur bus but buu naa nab nan nap nar nas nat nau nba nbb nbn nbp nbr nbs nbt nbu nna nnb nnn nnp nns nnt nnu npa npb npn npp npr nps npt npu nra nrb nrn nrp nrr nrs nrt nru nsa nsb nsn nsp nsr nss nst nsu nta ntb ntn ntp ntr nts ntt ntu nua nub nun nup nur nus nut nuu p-p paa pab pan pap par pas pat pau pba pbb pbn pbp pbr pbs pbt pbu pn- pna pnb pnn pnp pnr pns pnt pnu ppa ppb ppn ppp ppr pps ppt ppu pra prb prn prp prr prs prt pru ps- psa psb psn psp psr pss pst psu pt- pta ptb ptn ptp ptr pts ptt ptu pua pub pun pup pur pus put puu ra- raa rab ran rap rar ras rat rau rba rbb rbn rbp rbr rbs rbt rbu rna rnb rnn rnp rnr rns rnt rnu rpa rpb rpn rpp rpr rps rpt rpu rra rrb rrn rrp rrr rrs rrt rru rsa rsb rsn rsp rsr rss rst rsu rta rtb rtn rtp rtr rts rtt rtu rua rub run rup rur rus rut ruu saa sab san sap sar sas sat sau sba sbb sbn sbp sbr sbs sbt sbu sna snb snn snp snr sns snt snu spa spb spn spp spr sps spt spu sr- sra srb srn srp srr srs srt ss- ssa ssb ssn ssp ssr sss sst ssu sta stb stn stp str sts stt stu sua sub sun sup sur sus sut suu taa tab tan tap tar tas tat tau tba tbb tbn tbp tbr tbs tbt tbu tna tnb tnn tnp tnr tns tnt tpa tpb tpn tpp tpr tps tpt tpu tra trb trn trp trr trs trt tru tsa tsb tsn tsp tsr tss tst tsu tta ttb ttn ttp ttr tts ttt ttu tua tub tun tup tur tus tut tuu ua- uaa uab uan uap uar uas uat uau uba ubb ubn ubp ubr ubs ubt ubu un- una unb unn unp unr uns unt unu up- upa upb upn upp upr ups upt upu ur- ura urb urn urp urr urs urt uru usa usb usn usp usr uss ust usu uta utb utn utp utr uts utt utu uua uun uur uus uut uuu