-er -ic -th a-a a-b a-c a-i a-t aaa aab aac aae aah aai aap aar aat ab- aba abb abc abe abh abi abp abr abt ac- aca acb acc ace ach aci acp acr act aea aeb aec aee aeh aei aep aer aet aha ahb ahc ahe ahh ahi ahp ahr aht ai- aia aib aic aie aih aii aip air ait ap- apa apb apc ape aph api app apr apt ar- ara arb arc are arh ari arp arr art at- ata atb atc ate ath ati atp atr att b-p baa bab bac bae bah bai bap bar bat bba bbb bbc bbe bbh bbi bbp bbr bbt bca bcb bcc bce bch bci bcp bcr bct be- bea beb bec bee beh bei bep ber bet bha bhb bhc bhe bhh bhi bhp bhr bht bi- bia bib bic bie bih bii bip bir bit bpa bpb bpc bpe bph bpi bpp bpr bpt bra brb bre brh bri brp brr brt bta btb btc bte bth bti btp btr btt c-- caa cab cac cae cah cai cap car cat cba cbb cbc cbe cbh cbi cbp cbr cbt cca ccb ccc cce cch cci ccp ccr cct ce- cea ceb cec cee ceh cei cep cer cet ch- cha chb chc che chh chi chp chr cht ci- cia cib cic cie cih cii cip cir cit cpa cpb cpc cpe cph cpi cpp cpr cpt cra crb crc cre crh cri crp crr crt cta ctb ctc cte cth cti ctp ctr ctt eaa eab eac eae eah eai eap ear eat eba ebb ebc ebe ebh ebi ebp ebr ebt ec- eca ecb ecc ece ech eci ecr ect eea eeb eec eee eep eer eet eha ehb ehc ehe ehh ehi ehp ehr eht eia eib eic eie eii eip eir eit ep- epa epb epc epe eph epi epp epr ept era erb erc ere erh eri erp err ert eta etb etc ete eth eti etp etr ett h-i haa hab hac hae hah hai hap har hat hba hbb hbc hbe hbh hbi hbp hbr hbt hca hcb hcc hce hch hci hcp hcr hct he- hea heb hec hee heh hei hep her het hha hhb hhc hhe hhh hhi hhp hhr hht hia hib hic hie hih hii hip hir hit hpa hpb hpc hpe hph hpi hpp hpr hpt hr- hra hrb hrc hre hrh hri hrp hrr hrt hta htb htc hte hth hti htp htr htt ia- iaa iab iac iae iah iai iap iar iat iba ibb ibc ibe ibh ibi ibp ibr ibt ica icb icc ice ich ici icp icr ict ie- iea iec iee iei iep ier iet iha ihb ihc ihe ihh ihi ihp ihr iht iia iib iic iie iih iii iip iir iit ipa ipb ipc ipe ipi ipp ipr ipt ir- ira irb irc ire iri irp irr irt ita itb itc ite ith iti itp itt p-p paa pab pac pae pah pai pap par pat pba pbb pbc pbe pbi pbp pbr pbt pca pcb pcc pce pch pci pcp pcr pct pea peb pec pee peh pei pep per pet pha phb phc phe phi php phr pht pia pib pic pie pih pii pip pir pit ppa ppb ppc ppe pph ppi ppp ppr ppt pra prb prc pre prh pri prp prr prt pt- pta ptb ptc pte pth pti ptp ptr ptt ra- raa rab rac rae rah rai rap rar rat rba rbb rbc rbe rbh rbi rbp rbr rbt rca rcb rcc rce rch rci rcp rcr rct re- rea reb rec ree reh rei rep rer ret rh- rha rhb rhc rhe rhh rhi rhp rhr rht ria rib ric rie rih rii rip rir rit rpa rpb rpc rpe rph rpi rpp rpr rpt rra rrb rrc rrh rri rrp rrr rrt rta rtb rtc rte rti rtp rtr rtt taa tab tac tae tah tai tap tar tat tba tbb tbc tbe tbh tbi tbp tbr tbt tca tcb tcc tce tch tci tcp tcr tct te- tea teb tec tee teh tei tep ter tet th- tha thb thc the thh thi thp thr tht tia tib tic tie tih tii tip tir tit tpa tpb tpc tpe tph tpi tpp tpr tpt tra trb trc tre trh tri trp trr trt tta ttb ttc tte tth tti ttp ttr ttt