-er -ic -up a-a a-b a-c a-i aaa aab aac aae aai aak aan aap aar aas aau ab- aba abb abc abe abi abk abn abp abr abs abu ac- aca acb acc ace aci ack acn acp acr acs acu aea aeb aec aee aei aek aen aep aer aes aeu ai- aia aib aic aie aii aik ain aip air ais aiu aka akb akc ake aki akk akn akp akr aks aku an- ana anb anc ane ani ank ann anp anr ans anu ap- apa apb apc ape api apk apn app apr aps apu ar- ara arb arc are ari ark arn arp arr ars aru as- asa asb asc ase asi ask asn asp asr ass asu au- aua aub auc aue aui auk aun aup aur aus b-p b-u baa bab bac bae bai bak ban bap bar bas bau bba bbb bbc bbe bbi bbk bbn bbp bbr bbs bbu bca bcb bcc bce bci bck bcn bcp bcr bcs bcu be- bea beb bec bee bei bek ben bep ber bes beu bi- bia bib bic bie bii bik bin bip bir bis biu bka bkb bkc bke bkk bkn bkp bkr bks bna bnb bnc bne bni bnk bnn bnp bnr bns bnu bpa bpb bpc bpe bpi bpn bpp bpr bps bpu bra brb bre bri brk brn brp brr brs bru bsa bsb bsc bse bsi bsk bsn bsp bsr bss bsu bua bub buc bue bui buk bun bup bur bus buu c-- caa cab cac cae cai cak can cap car cas cau cba cbb cbc cbe cbi cbk cbn cbp cbr cbs cbu cca ccb ccc cce cci cck ccn ccp ccr ccs ccu ce- cea ceb cec cee cei cek cen cep cer ces ceu ci- cia cib cic cie cii cik cin cip cir cis ciu cka ckb ckc cki cks cn- cna cnb cnc cne cni cnn cnp cnr cns cnu cpa cpb cpc cpe cpi cpk cpn cpp cpr cps cpu cra crb crc cre cri crk crn crp crr crs cru csa csb csc cse csi csk csn csp csr css csu cua cub cuc cue cui cuk cun cup cur cus cuu eaa eab eac eae eai eak ean eap ear eas eau eba ebb ebc ebe ebi ebk ebn ebp ebr ebs ebu ec- eca ecb ecc ece eci eck ecn ecr ecs ecu eea eeb eec eee eek een eep eer ees eia eib eic eie eii eik ein eip eir eis eiu eka ekb ekc eke eki ekp ekr eks eku en- ena enb enc ene eni enk enn enp enr ens enu ep- epa epb epc epe epi epn epp epr eps epu era erb erc ere eri erk ern erp err ers eru es- esa esb esc ese esi esk esn esp esr ess esu eu- eua eub euc eue eui eun eup eur eus ia- iaa iab iac iae iai ian iap iar ias iau iba ibb ibc ibe ibi ibk ibn ibp ibr ibs ibu ica icb icc ice ici ick icn icp icr ics icu ie- iea iec iee iei iek ien iep ier ies iia iib iic iie iii iin iip iir iis iiu ika ikb ikc ike iki ikk ikr iks iku in- ina inb inc ine ini ink inn inp inr ins inu ipa ipb ipc ipe ipi ipn ipp ipr ips ipu ir- ira irb irc ire iri irk irn irp irr irs iru is- isa isb isc ise isi isk isn isp isr iss isu iu- iua iub iuc iue iui iup iur ius ka- kaa kab kac kae kai kak kan kap kar kas kau kba kbb kbc kbe kbi kbk kbn kbp kbr kbs kbu kca kcb kcc kce kci kck kcn kcp kcr kcs kcu ke- kea keb kec kee kei kek ken kep ker kes kia kib kic kie kii kik kin kip kir kis kiu kkb kkc kke kki kkk kkn kkp kkr kks kku kn- kna knc kne kni knk knn knp knr knu kpa kpc kpe kpi kpk kpn kpp kpr kps kpu kra krc kri krk krn krp krr krs kru ksa ksb ksc kse ksi ksk ksn ksp ksr kss ksu kub kuc kue kui kuk kun kup kur kus kuu n-i naa nab nac nae nai nak nan nap nar nas nau nba nbb nbc nbe nbi nbk nbn nbp nbr nbs nbu nca ncb ncc nce nci nck ncn ncp ncr ncs ncu ne- nea neb nec nee nei nek nen nep ner nes neu nia nib nic nie nii nik nin nip nir nis niu nka nkc nke nki nkk nkn nkp nkr nks nku nna nnb nnc nne nni nnk nnn nnp nns nnu npa npb npc npe npi npn npp npr nps npu nra nrb nrc nre nri nrk nrn nrp nrr nrs nru nsa nsb nsc nse nsi nsk nsn nsp nsr nss nsu nua nub nuc nue nui nuk nun nup nur nus nuu p-p paa pab pac pae pai pak pan pap par pas pau pba pbb pbc pbe pbi pbk pbn pbp pbr pbs pbu pca pcb pcc pce pci pck pcn pcp pcr pcs pcu pea peb pec pee pei pek pen pep per pes peu pia pib pic pie pii pik pin pip pir pis piu pka pkb pkc pke pki pkn pkp pkr pks pku pn- pna pnb pnc pne pni pnk pnn pnp pnr pns pnu ppa ppb ppc ppe ppi ppk ppn ppp ppr pps ppu pra prb prc pre pri prk prn prp prr prs pru ps- psa psb psc pse psi psk psn psp psr pss psu pua pub puc pue pui puk pun pup pur pus puu ra- raa rab rac rae rai rak ran rap rar ras rau rba rbb rbc rbe rbi rbk rbn rbp rbr rbs rbu rca rcb rcc rce rci rcn rcp rcr rcs