-er -ic a-a a-c a-i a-t aaa aac aae aaf aai aak aan aao aar aat ac- aca acc ace acf aci ack acn aco acr act aea aec aee aef aei aek aen aeo aer aet af- afa afc afe aff afi afk afn afo afr aft ai- aia aic aie aif aii aik ain aio air ait aka akc ake aki akk akn ako akr an- ana anc ane anf ani ank ann ano anr ant aoa aoc aoe aof aoi aok aon aoo aor aot ar- ara arc are arf ari ark arn aro arr art at- ata atc ate atf ati atn ato atr att c-- caa cac cae caf cai cak can cao car cat cca ccc cce ccf cci cck ccn cco ccr cct ce- cea cec cee cef cei cek cen ceo cer cet cfa cfc cfe cff cfi cfk cfn cfo cfr cft ci- cia cic cie cif cii cik cin cio cir cit cka ckc cki cko ckt cn- cna cnc cne cnf cni cnn cno cnr cnt co- coa coc coe cof coi cok con coo cor cot cra crc cre crf cri crk crn cro crr crt cta ctc cte ctf cti ctk ctn cto ctr ctt eaa eac eae eaf eai eak ean eao ear eat ec- eca ecc ece ecf eci eck ecn eco ecr ect eea eec eee eef eek een eeo eer eet ef- efa efc efe eff efi efo efr eft eia eic eie eif eii eik ein eio eir eit eka ekc eke ekf eki eko ekr ekt en- ena enc ene enf eni enk enn eno enr ent eo- eoa eoc eoe eof eoi eok eon eoo eor eot era erc ere erf eri erk ern ero err ert eta etc ete etf eti etk etn eto etr ett faa fac fae faf fai fak fan fao far fat fca fcc fce fcf fci fck fcn fco fcr fct fea fec fee fef fei fek fen feo fer fet ffa ffc ffe fff ffi ffk ffn ffo ffr fft fia fic fie fif fii fik fin fir fit fka fkc fkf fki fkk fkt fna fnc fne fnf fni fnk fnn fnr fnt foa foc foe fof foi fok fon foo for fot fra frc fre frf fri frk frn fro frr frt fta ftc fte ftf fti ftk ftn fto ftr ftt i-f ia- iaa iac iae iaf iai ian iao iar iat ica icc ice icf ici ick icn ico icr ict ie- iea iec iee ief iei iek ien ier iet ifa ifc ife iff ifi ifn ifo ifr ift iia iic iie iif iii iin iio iir iit ika ikc ike ikf iki ikk iko ikr ikt in- ina inc ine inf ini ink inn ino inr int io- ioa ioc ioe iof ioi ion ioo ior iot ir- ira irc ire irf iri irk irn iro irr irt ita itc ite itf iti itk itn ito itt k-t ka- kaa kac kae kaf kai kak kan kao kar kat kca kcc kce kci kck kcn kcr kct ke- kea kec kee kef kei kek ken keo ker ket kfa kfc kff kfi kfo kia kic kie kif kii kik kin kio kir kit kkc kke kki kkk kkn kkr kkt kn- kna knc kne knf kni knk knn kno knr knt koa koc koe kof koi kok kon koo kor kot kra krc krf kri krk krn kro krr krt kta ktc kte ktf ktk ktn kto ktr ktt n-i naa nac nae naf nai nak nan nao nar nat nca ncc nce ncf nci nck ncn nco ncr nct ne- nea nec nee nef nei nek nen neo ner net nfa nfc nfe nff nfi nfk nfn nfo nfr nft nia nic nie nif nii nik nin nio nir nit nka nkc nke nkf nki nkk nkn nko nkr nkt nna nnc nne nnf nni nnk nnn nno nnt no- noa noc noe nof noi nok non noo nor not nra nrc nre nrf nri nrk nrn nro nrr nrt nta ntc nte ntf nti ntk ntn nto ntr ntt o-i oaa oac oae oaf oai oak oan oao oar oat oc- oca occ ocf oci ock ocn oco ocr oct oea oec oee oef oei oen oeo oer oet of- ofa ofc ofe off ofi ofn ofo ofr oft oia oic oie oif oii oik oin oio oir oit oka okc oke oki okk oko okr on- ona onc one onf oni onk onn ono onr ont oo- ooa ooc oof ooi ook oon ooo oor oot or- ora orc ore orf ori ork orn oro orr ort ot- ota otc ote otf oti otk otn oto otr ott ra- raa rac rae raf rai rak ran rao rar rat rca rcc rce rcf rci rcn rco rcr rct re- rea rec ree ref rei rek ren reo rer ret rfa rfc rfe rff rfi rfk rfn rfo rfr rft ria ric rie rif rii rik rin rio rir rit rkc rke rkf rkk rko rkt rna rnc rni rnn rno rnr rnt roa roc roe rof roi rok ron roo ror rot rra rrc rrf rri rrk rrn rrr rrt rta rtc rte rtf rti rtk rtn rto rtr rtt taa tac tae taf tai tak tan tao tar tat tca tcc tce tcf tci tck tcn tco tcr tct te- tea tec tee tef tei tek ten teo ter tet tfa tfc tfe tff tfi tfk tfn tfo tfr tft tia tic tie tif tii tik tin tio tir tit tka tkc tke tkk tko tkr tkt tna tnc tne tnf tni tnk tnn tno tnr tnt to- toa toc toe tof toi tok ton too tor tot tra trc tre trf tri trk trn tro trr trt tta ttc tte ttf tti ttk ttn tto ttr ttt