-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aan aao aap aar aat ab- aba abb abc abe abf abi abn abo abp abr abt ac- aca acb acc ace acf aci acn aco acp acr act aea aeb aec aee aef aei aen aeo aep aer aet af- afa afb afc afe aff afi afn afo afp afr aft ai- aia aib aic aie aif aii ain aio aip air ait an- ana anb anc ane anf ani ann ano anp anr ant aoa aob aoc aoe aof aoi aon aoo aop aor aot ap- apa apb apc ape apf api apn apo app apr apt ar- ara arb arc are arf ari arn aro arp arr art at- ata atb atc ate atf ati atn ato atp atr att b-p baa bab bac bae baf bai ban bao bap bar bat bba bbb bbc bbe bbf bbi bbn bbo bbp bbr bbt bca bcb bcc bce bcf bci bcn bco bcp bcr bct be- bea beb bec bee bef bei ben beo bep ber bet bfa bfb bfc bfe bff bfi bfn bfo bfp bfr bft bi- bia bib bic bie bif bii bin bio bip bir bit bna bnb bnc bne bnf bni bnn bno bnp bnr bnt boa bob boc boe bof boi bon boo bop bor bot bpa bpb bpc bpe bpf bpi bpn bpo bpp bpr bpt bra brb bre brf bri brn bro brp brr brt bta btb btc bte btf bti btn bto btp btr btt c-- caa cab cac cae caf cai can cao cap car cat cba cbb cbc cbe cbf cbi cbn cbo cbp cbr cbt cca ccb ccc cce ccf cci ccn cco ccp ccr cct ce- cea ceb cec cee cef cei cen ceo cep cer cet cfa cfb cfc cfe cff cfi cfn cfo cfp cfr cft ci- cia cib cic cie cif cii cin cio cip cir cit cn- cna cnb cnc cne cnf cni cnn cno cnp cnr cnt co- coa cob coc coe cof coi con coo cop cor cot cpa cpb cpc cpe cpf cpi cpn cpo cpp cpr cpt cra crb crc cre crf cri crn cro crp crr crt cta ctb ctc cte ctf cti ctn cto ctp ctr ctt eaa eab eac eae eaf eai ean eao eap ear eat eba ebb ebc ebe ebf ebi ebn ebo ebp ebr ebt ec- eca ecb ecc ece ecf eci ecn eco ecr ect eea eeb eec eee eef een eeo eep eer eet ef- efa efb efc efe eff efi efo efp efr eft eia eib eic eie eif eii ein eio eip eir eit en- ena enb enc ene enf eni enn eno enp enr ent eo- eoa eob eoc eoe eof eoi eon eoo eop eor eot ep- epa epb epc epe epf epi epn epo epp epr ept era erb erc ere erf eri ern ero erp err ert eta etb etc ete etf eti etn eto etp etr ett faa fab fac fae faf fai fan fao fap far fat fba fbb fbc fbe fbf fbi fbn fbo fbp fbr fbt fca fcb fcc fce fcf fci fcn fco fcp fcr fct fea feb fec fee fef fei fen feo fep fer fet ffa ffc ffe fff ffi ffn ffo ffp ffr fft fia fib fic fie fif fii fin fip fir fit fna fnb fnc fne fnf fni fnn fnp fnr fnt foa fob foc foe fof foi fon foo fop for fot fpa fpb fpc fpe fpi fpn fpo fpp fpr fpt fra frb frc fre frf fri frn fro frp frr frt fta ftb ftc fte ftf fti ftn fto ftp ftr ftt i-f ia- iaa iab iac iae iaf iai ian iao iap iar iat iba ibb ibc ibe ibf ibi ibn ibo ibp ibr ibt ica icb icc ice icf ici icn ico icp icr ict ie- iea iec iee ief iei ien iep ier iet ifa ifb ifc ife iff ifi ifn ifo ifp ifr ift iia iib iic iie iif iii iin iio iip iir iit in- ina inb inc ine inf ini inn ino inp inr int io- ioa iob ioc ioe iof ioi ion ioo iop ior iot ipa ipb ipc ipe ipf ipi ipn ipo ipp ipr ipt ir- ira irb irc ire irf iri irn iro irp irr irt ita itb itc ite itf iti itn ito itp itt n-i naa nab nac nae naf nai nan nao nap nar nat nba nbb nbc nbe nbf nbi nbn nbo nbp nbr nbt nca ncb ncc nce ncf nci ncn nco ncp ncr nct ne- nea neb nec nee nef nei nen neo nep ner net nfa nfb nfc nfe nff nfi nfn nfo nfp nfr nft nia nib nic nie nif nii nin nio nip nir nit nna nnb nnc nne nnf nni nnn nno nnp nnt no- noa nob noc noe nof noi non noo nop nor not npa npb npc npe npf npi npn npo npp npr npt nra nrb nrc nre nrf nri nrn nro nrp nrr nrt nta ntb ntc nte ntf nti ntn nto ntp ntr ntt o-i oaa oab oac oae oaf oai oan oao oap oar oat ob- oba obb obc obe obf obi obn obo obp obr obt oc- oca ocb occ ocf oci ocn oco ocp ocr oct oea oeb oec oee oef oei oen oeo oep oer oet of- ofa ofb ofc ofe off ofi ofn ofo ofp ofr oft oia oib oic oie oif oii oin oio oip oir oit on- ona onb onc one onf oni onn ono onp onr ont oo- ooa oob ooc oof ooi oon ooo oop oor oot op- opa opb opc ope opf opi opn opo opp opr opt or- ora orb orc ore orf ori orn oro orp orr ort ot- ota otb otc ote otf oti otn oto otp otr ott