-er -ic a-a a-c a-i a-t aaa aac aae aag aai aak aao aap aar aat ac- aca acc ace acg aci ack aco acp acr act aea aec aee aeg aei aek aeo aep aer aet ag- aga agc age agg agi agk ago agp agr agt ai- aia aic aie aig aii aik aio aip air ait aka akc ake akg aki akk ako akp akr aoa aoc aoe aog aoi aok aoo aop aor aot ap- apa apc ape apg api apk apo app apr apt ar- ara arc are arg ari ark aro arp arr art at- ata atc ate atg ati ato atp atr att c-- caa cac cae cag cai cak cao cap car cat cca ccc cce ccg cci cck cco ccp ccr cct ce- cea cec cee ceg cei cek ceo cep cer cet cga cgc cge cgg cgi cgo cgp cgr cgt ci- cia cic cie cig cii cik cio cip cir cit cka ckc cki cko ckt co- coa coc coe cog coi cok coo cop cor cot cpa cpc cpe cpg cpi cpk cpo cpp cpr cpt cra crc cre crg cri crk cro crp crr crt cta ctc cte ctg cti ctk cto ctp ctr ctt eaa eac eae eag eai eak eao eap ear eat ec- eca ecc ece ecg eci eck eco ecr ect eea eec eee eeg eek eeo eep eer eet ega egc ege egg egi ego egp egr egt eia eic eie eig eii eik eio eip eir eit eka ekc eke ekg eki eko ekp ekr ekt eo- eoa eoc eoe eog eoi eok eoo eop eor eot ep- epa epc epe epg epi epo epp epr ept era erc ere erg eri erk ero erp err ert eta etc ete etg eti etk eto etp etr ett g-p gaa gac gae gag gai gak gao gap gar gat gca gcc gce gcg gci gck gco gcp gcr gct ge- gea gec gee geg gei gek geo gep ger get gga ggc ggg ggi ggo ggp ggr ggt gia gic gie gig gii gik gio gip gir git gka gko gkp gkt goa goc goe gog goi gok goo gop gor got gpa gpc gpe gpg gpi gpk gpo gpp gpr gpt gra grc gre grg gri grk gro grp grr grt gta gtc gte gtg gti gtk gto gtp gtr gtt ia- iaa iac iae iag iai iao iap iar iat ica icc ice icg ici ick ico icp icr ict ie- iea iec iee ieg iei iek iep ier iet iga igc ige igg igi igk igo igp igr igt iia iic iie iii iio iip iir iit ika ikc ike iki ikk iko ikr ikt io- ioa ioc ioe iog ioi ioo iop ior iot ipa ipc ipe ipg ipi ipo ipp ipr ipt ir- ira irc ire irg iri irk iro irp irr irt ita itc ite itg iti itk ito itp itt k-t ka- kaa kac kae kag kai kak kao kap kar kat kca kcc kce kcg kci kck kcp kcr kct ke- kea kec kee keg kei kek keo kep ker ket kga kgc kgi kgo kgp kia kic kie kig kii kik kio kip kir kit kkc kke kki kkk kkp kkr kkt koa koc koe kog koi kok koo kop kor kot kpa kpc kpe kpi kpk kpo kpp kpr kpt kra krc krg kri krk kro krp krr krt kta ktc kte ktg ktk kto ktp ktr ktt o-i oaa oac oae oag oai oak oao oap oar oat oc- oca occ ocg oci ock oco ocp ocr oct oea oec oee oeg oei oeo oep oer oet oga ogc oge ogg ogi ogo ogp ogt oia oic oie oii oik oio oip oir oit oka okc oke okg oki okk oko okp okr oo- ooa ooc oog ooi ook ooo oop oor oot op- opa opc ope opg opi opk opo opp opr opt or- ora orc ore org ori ork oro orp orr ort ot- ota otc ote otg oti otk oto otp otr ott p-p paa pac pae pag pai pak pao pap par pat pca pcc pce pcg pci pck pco pcp pcr pct pea pec pee peg pei pek peo pep per pet pga pgc pge pgg pgi pgk pgo pgp pgr pgt pia pic pie pig pii pik pio pip pir pit pka pkc pke pkg pki pko pkp pkr pkt poa poc poe pog poi pok poo pop por pot ppa ppc ppe ppg ppi ppk ppo ppp ppr ppt pra prc pre prg pri prk pro prp prr prt pt- pta ptc pte ptg pti ptk pto ptp ptr ptt ra- raa rac rae rag rai rak rao rap rar rat rca rcc rce rcg rci rco rcp rcr rct re- rea rec ree reg rei rek reo rep rer ret rga rgc rge rgg rgi rgk rgo rgp rgr rgt ria ric rie rig rii rik rio rip rir rit rkc rke rkg rkk rko rkp rkt roa roc roe rog roi rok roo rop ror rot rpa rpc rpe rpg rpi rpk rpo rpp rpr rpt rra rrc rrg rri rrk rrp rrr rrt rta rtc rte rtg rti rtk rto rtp rtr rtt taa tac tae tag tai tak tao tap tar tat tca tcc tce tcg tci tck tco tcp tcr tct te- tea tec tee teg tei tek teo tep ter tet tga tgc tge tgg tgi tgk tgo tgp tgr tgt tia tic tie tig tii tik tio tip tir tit tka tkc tke tkg tkk tko tkp tkr tkt to- toa toc toe tog toi tok too top tor tot tpa tpc tpe tpg tpi tpk tpo tpp tpr tpt tra trc tre trg tri trk tro trp trr trt tta ttc tte ttg tti ttk tto ttp ttr ttt