-er -ic a-a a-c a-i a-t aaa aac aae aaf aai aak aan aar aat ac- aca acc ace acf aci ack acn acr act aea aec aee aef aei aek aen aer aet af- afa afc afe aff afi afk afn afr aft ai- aia aic aie aif aii aik ain air ait aka akc ake aki akk akn akr an- ana anc ane anf ani ank ann anr ant ar- ara arc are arf ari ark arn arr art at- ata atc ate atf ati atn atr att c-- caa cac cae caf cai cak can car cat cca ccc cce ccf cci cck ccn ccr cct ce- cea cec cee cef cei cek cen cer cet cfa cfc cfe cff cfi cfk cfn cfr cft ci- cia cic cie cif cii cik cin cir cit cka ckc cki ckt cn- cna cnc cne cnf cni cnn cnr cnt cra crc cre crf cri crk crn crr crt cta ctc cte ctf cti ctk ctn ctr ctt eaa eac eae eaf eai eak ean ear eat ec- eca ecc ece ecf eci eck ecn ecr ect eea eec eee eef eek een eer eet ef- efa efc efe eff efi efr eft eia eic eie eif eii eik ein eir eit eka ekc eke ekf eki ekr ekt en- ena enc ene enf eni enk enn enr ent era erc ere erf eri erk ern err ert eta etc ete etf eti etk etn etr ett faa fac fae faf fai fak fan far fat fca fcc fce fcf fci fck fcn fcr fct fea fec fee fef fei fek fen fer fet ffa ffc ffe fff ffi ffk ffn 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 fra frc fre frf fri frk frn frr frt fta ftc fte ftf fti ftk ftn ftr ftt i-f ia- iaa iac iae iaf iai ian iar iat ica icc ice icf ici ick icn icr ict ie- iea iec iee ief iei iek ien ier iet ifa ifc ife iff ifi ifn ifr ift iia iic iie iif iii iin iir iit ika ikc ike ikf iki ikk ikr ikt in- ina inc ine inf ini ink inn inr int ir- ira irc ire irf iri irk irn irr irt ita itc ite itf iti itk itn itt k-t ka- kaa kac kae kaf kai kak kan kar kat kca kcc kce kci kck kcn kcr kct ke- kea kec kee kef kei kek ken ker ket kfa kfc kff kfi kia kic kie kif kii kik kin kir kit kkc kke kki kkk kkn kkr kkt kn- kna knc kne knf kni knk knn knr knt kra krc krf kri krk krn krr krt kta ktc kte ktf ktk ktn ktr ktt n-i naa nac nae naf nai nak nan nar nat nca ncc nce ncf nci nck ncn ncr nct ne- nea nec nee nef nei nek nen ner net nfa nfc nfe nff nfi nfk nfn nfr nft nia nic nie nif nii nik nin nir nit nka nkc nke nkf nki nkk nkn nkr nkt nna nnc nne nnf nni nnk nnn nnt nra nrc nre nrf nri nrk nrn nrr nrt nta ntc nte ntf nti ntk ntn ntr ntt ra- raa rac rae raf rai rak ran rar rat rca rcc rce rcf rci rcn rcr rct re- rea rec ree ref rei rek ren rer ret rfa rfc rfe rff rfi rfk rfn rfr rft ria ric rie rif rii rik rin rir rit rkc rke rkf rkk rkt rna rnc rni rnn rnr rnt rra rrc rrf rri rrk rrn rrr rrt rta rtc rte rtf rti rtk rtn rtr rtt taa tac tae taf tai tak tan tar tat tca tcc tce tcf tci tck tcn tcr tct te- tea tec tee tef tei tek ten ter tet tfa tfc tfe tff tfi tfk tfn tfr tft tia tic tie tif tii tik tin tir tit tka tkc tke tkk tkr tkt tna tnc tne tnf tni tnk tnn tnr tnt tra trc tre trf tri trk trn trr trt tta ttc tte ttf tti ttk ttn ttr ttt