-er -ic -th a-a a-c a-i a-t aaa aac aae aag aah aai aak aar aat ac- aca acc ace acg ach aci ack acr act aea aec aee aeg aeh aei aek aer aet ag- aga agc age agg agh agi agk agr agt aha ahc ahe ahg ahh ahi ahk ahr aht ai- aia aic aie aig aih aii aik air ait aka akc ake akg akh aki akk akr ar- ara arc are arg arh ari ark arr art at- ata atc ate atg ath ati atr att c-- caa cac cae cag cah cai cak car cat cca ccc cce ccg cch cci cck ccr cct ce- cea cec cee ceg ceh cei cek cer cet cga cgc cge cgg cgh cgi cgr cgt ch- cha chc che chg chh chi chk chr cht ci- cia cic cie cig cih cii cik cir cit cka ckc ckh cki ckt cra crc cre crg crh cri crk crr crt cta ctc cte ctg cth cti ctk ctr ctt eaa eac eae eag eah eai eak ear eat ec- eca ecc ece ecg ech eci eck ecr ect eea eec eee eeg eek eer eet ega egc ege egg egh egi egr egt eha ehc ehe ehg ehh ehi ehr eht eia eic eie eig eii eik eir eit eka ekc eke ekg ekh eki ekr ekt era erc ere erg erh eri erk err ert eta etc ete etg eth eti etk etr ett gaa gac gae gag gah gai gak gar gat gca gcc gce gcg gch gci gck gcr gct ge- gea gec gee geg geh gei gek ger get gga ggc ggg ggh ggi ggr ggt gha ghc ghe ghg ghh ghi ghr ght gia gic gie gig gih gii gik gir git gka gkh gkt gra grc gre grg grh gri grk grr grt gta gtc gte gtg gth gti gtk gtr gtt h-i haa hac hae hag hah hai hak har hat hca hcc hce hcg hch hci hck hcr hct he- hea hec hee heg heh hei hek her het hga hgc hge hgg hgh hgi hgk hgr hgt hha hhc hhe hhg hhh hhi hhk hhr hht hia hic hie hig hih hii hik hir hit hka hkg hkh hki hkk hkr hkt hr- hra hrc hre hrg hrh hri hrk hrr hrt hta htc hte htg hth hti htk htr htt ia- iaa iac iae iag iah iai iar iat ica icc ice icg ich ici ick icr ict ie- iea iec iee ieg iei iek ier iet iga igc ige igg igh igi igk igr igt iha ihc ihe ihg ihh ihi ihk ihr iht iia iic iie iih iii iir iit ika ikc ike iki ikk ikr ikt ir- ira irc ire irg iri irk irr irt ita itc ite itg ith iti itk itt k-t ka- kaa kac kae kag kah kai kak kar kat kca kcc kce kcg kch kci kck kcr kct ke- kea kec kee keg keh kei kek ker ket kga kgc kgh kgi kha khe khh khi khk khr kia kic kie kig kih kii kik kir kit kkc kke kkh kki kkk kkr kkt kra krc krg kri krk krr krt kta ktc kte ktg kth ktk ktr ktt ra- raa rac rae rag rah rai rak rar rat rca rcc rce rcg rch rci rcr rct re- rea rec ree reg reh rei rek rer ret rga rgc rge rgg rgh rgi rgk rgr rgt rh- rha rhc rhe rhg rhh rhi rhr rht ria ric rie rig rih rii rik rir rit rkc rke rkg rkk rkt rra rrc rrg rrh rri rrk rrr rrt rta rtc rte rtg rti rtk rtr rtt taa tac tae tag tah tai tak tar tat tca tcc tce tcg tch tci tck tcr tct te- tea tec tee teg teh tei tek ter tet tga tgc tge tgg tgh tgi tgk tgr tgt th- tha thc the thg thh thi thk thr tht tia tic tie tig tih tii tik tir tit tka tkc tke tkg tkk tkr tkt tra trc tre trg trh tri trk trr trt tta ttc tte ttg tth tti ttk ttr ttt