-ic -up a-a a-b a-c a-i aaa aab aac aai aak aao aap aar aas aau aav ab- aba abb abc abi abk abo abp abr abs abu abv ac- aca acb acc aci ack aco acp acr acs acu acv ai- aia aib aic aii aik aio aip air ais aiu aiv aka akb akc aki akk ako akp akr aks aku akv aoa aob aoc aoi aok aoo aop aor aos aou aov ap- apa apb apc api apk apo app apr aps apu apv ar- ara arb arc ari ark aro arp arr ars aru arv as- asa asb asc asi ask aso asp asr ass asu asv au- aua aub auc aui auk auo aup aur aus auv av- ava avb avc avi avk avo avp avr avs avu b-p b-u baa bab bac bai bak bao bap bar bas bau bav bba bbb bbc bbi bbk bbo bbp bbr bbs bbu bca bcb bcc bci bck bco bcp bcr bcs bcu bcv bi- bia bib bic bii bik bio bip bir bis biu biv bka bkb bkc bkk bko bkp bkr bks bkv boa bob boc boi bok boo bop bor bos bou bov bpa bpb bpc bpi bpo bpp bpr bps bpu bpv bra brb bri brk bro brp brr brs bru brv bsa bsb bsc bsi bsk bso bsp bsr bss bsu bsv bua bub buc bui buk buo bup bur bus buu bva bvb bvc bvi bvk bvo bvp bvr bvs bvu bvv c-- caa cab cac cai cak cao cap car cas cau cav cba cbb cbc cbi cbk cbo cbp cbr cbs cbu cbv cca ccb ccc cci cck cco ccp ccr ccs ccu ccv ci- cia cib cic cii cik cio cip cir cis ciu civ cka ckb ckc cki cko cks co- coa cob coc coi cok coo cop cor cos cou cov cpa cpb cpc cpi cpk cpo cpp cpr cps cpu cpv cra crb crc cri crk cro crp crr crs cru crv csa csb csc csi csk cso csp csr css csu csv cua cub cuc cui cuk cuo cup cur cus cuu cuv cva cvb cvc cvi cvk cvo cvp cvr cvs cvu cvv i-v ia- iaa iab iac iai iao iap iar ias iau iav iba ibb ibc ibi ibk ibo ibp ibr ibs ibu ibv ica icb icc ici ick ico icp icr ics icu icv iia iib iic iii iio iip iir iis iiu ika ikb ikc iki ikk iko ikr iks iku ikv io- ioa iob ioc ioi ioo iop ior ios iou iov ipa ipb ipc ipi ipo ipp ipr ips ipu ipv ir- ira irb irc iri irk iro irp irr irs iru irv is- isa isb isc isi isk iso isp isr iss isu isv iu- iua iub iuc iui iup iur ius iva ivb ivc ivi ivo ivp ivr ivs ivu ivv ka- kaa kab kac kai kak kao kap kar kas kau kav kba kbb kbc kbi kbk kbo kbp kbr kbs kbu kca kcb kcc kci kck kcp kcr kcs kcu kia kib kic kii kik kio kip kir kis kiu kiv kkb kkc kki kkk kkp kkr kks kku kkv koa kob koc koi kok koo kop kor kos kou kpa kpc kpi kpk kpo kpp kpr kps kpu kpv kra krc kri krk kro krp krr krs kru krv ksa ksb ksc ksi ksk kso ksp ksr kss ksu ksv kub kuc kui kuk kup kur kus kuu kva kvb kvi kvk kvo kvp kvr kvs kvv o-i oaa oab oac oai oak oao oap oar oas oau oav ob- oba obb obc obi obk obo obp obr obs obu obv oc- oca ocb occ oci ock oco ocp ocr ocs ocu ocv oia oib oic oii oik oio oip oir ois oiu oiv oka okb okc oki okk oko okp okr oks oku oo- ooa oob ooc ooi ook ooo oop oor oos oov op- opa opb opc opi opk opo opp opr ops opv or- ora orb orc ori ork oro orp orr ors oru orv os- osa osb osc osi osk oso osp osr oss osu osv ou- oua ouc oui ouk ouo oup our ous ov- ova ovb ovc ovi ovo ovp ovs ovv p-p paa pab pac pai pak pao pap par pas pau pav pba pbb pbc pbi pbk pbo pbp pbr pbs pbu pca pcb pcc pci pck pco pcp pcr pcs pcu pcv pia pib pic pii pik pio pip pir pis piu piv pka pkb pkc pki pko pkp pkr pks pku poa pob poc poi pok poo pop por pos pou pov ppa ppb ppc ppi ppk ppo ppp ppr pps ppu ppv pra prb prc pri prk pro prp prr prs pru prv ps- psa psb psc psi psk pso psp psr pss psu psv pua pub puc pui puk pup pur pus puu pva pvb pvc pvi pvk pvo pvp pvr pvs pvu pvv ra- raa rab rac rai rak rao rap rar ras rau rav rba rbb rbc rbi rbk rbo rbp rbr rbs rbu rca rcb rcc rci rco rcp rcr rcs rcu rcv ria rib ric rii rik rio rip rir ris riv rkb rkc rkk rko rkp rks rku rkv roa rob roc roi rok roo rop ror ros rou rov rpa rpb rpc rpi rpk rpo rpp rpr rps rpu rpv rra rrb rrc rri rrk rrp rrr rrs rru rsa rsb rsc rsi rsk rso rsp rsr rss rsu rsv rua rub ruc rui ruk ruo rup rur rus ruu ruv rva rvb rvc rvi rvo rvp rvr rvs rvu rvv saa sab sac sai sak sao sap sar sas sau sav sba sbb sbc sbi sbk sbo sbp sbr sbs sbu sbv sca scb scc sci sck sco scp scr scs scu scv sia sib sic sii sik sio sip sir sis siu siv sk- ska skb skc ski skk sko skp skr