-er -th a-a a-c a-t aaa aac aad aae aah aao aap aar aat ac- aca acc acd ace ach aco acp acr act ad- ada adc add ade adh ado adp adr adt aea aec aed aee aeh aeo aep aer aet aha ahc ahd ahe ahh aho ahp ahr aht aoa aoc aod aoe aoh aoo aop aor aot ap- apa apc apd ape aph apo app apr apt ar- ara arc ard are arh aro arp arr art at- ata atc atd ate ath ato atp atr att c-- caa cac cad cae cah cao cap car cat cca ccc ccd cce cch cco ccp ccr cct cda cdc cdd cde cdh cdo cdp cdr cdt ce- cea cec ced cee ceh ceo cep cer cet ch- cha chc chd che chh cho chp chr cht co- coa coc cod coe coh coo cop cor cot cpa cpc cpd cpe cph cpo cpp cpr cpt cra crc crd cre crh cro crp crr crt cta ctc ctd cte cth cto ctp ctr ctt daa dac dad dae dah dao dap dar dat dca dcc dcd dce dco dcp dcr dct dda ddc ddd dde ddh ddo ddp ddr ddt de- dea dec ded dee deh deo dep der det dh- dha dhc dhd dhe dhh dho dhp dhr dht doa doc dod doe doh doo dop dor dot dpa dpc dpd dpe dph dpo dpp dpr dpt dra drc drd dre dro drp drr drt dta dtc dtd dte dth dto dtp dtr dtt eaa eac ead eae eah eao eap ear eat ec- eca ecc ecd ece ech eco ecr ect ed- eda edc edd ede edh edo edp edr edt eea eec eed eee eeo eep eer eet eha ehc ehd ehe ehh eho ehp ehr eht eo- eoa eoc eod eoe eoh eoo eop eor eot ep- epa epc epd epe eph epo epp epr ept era erc erd ere erh ero erp err ert eta etc etd ete eth eto etp etr ett haa hac had hae hah hao hap har hat hca hcc hcd hce hch hco hcp hcr hct hda hdc hdd hde hdh hdo hdp hdr hdt he- hea hec hed hee heh heo hep her het hha hhc hhd hhe hhh hho hhp hhr hht hoa hoc hod hoe hoh hoo hop hor hot hpa hpc hpd hpe hph hpo hpp hpr hpt hr- hra hrc hrd hre hrh hro hrp hrr hrt hta htc htd hte hth hto htp htr htt oaa oac oad oae oah oao oap oar oat oc- oca occ ocd och oco ocp ocr oct oda odc odd ode odh odo odp odr odt oea oec oed oee oeh oeo oep oer oet oha ohc ohd ohe ohh oho ohp ohr oht oo- ooa ooc ood ooh ooo oop oor oot op- opa opc opd ope oph opo opp opr opt or- ora orc ord ore orh oro orp orr ort ot- ota otc otd ote oth oto otp otr ott p-p paa pac pad pae pah pao pap par pat pca pcc pcd pce pch pco pcp pcr pct pda pdc pdd pde pdh pdo pdp pdr pdt pea pec ped pee peh peo pep per pet pha phc phd phe pho php phr pht poa poc pod poe poh poo pop por pot ppa ppc ppd ppe pph ppo ppp ppr ppt pra prc prd pre prh pro prp prr prt pt- pta ptc ptd pte pth pto ptp ptr ptt ra- raa rac rad rae rah rao rap rar rat rca rcc rcd rce rch rco rcp rcr rct rda rdc rdd rde rdh rdo rdp rdr rdt re- rea rec red ree reh reo rep rer ret rh- rha rhc rhd rhe rhh rho rhp rhr rht roa roc rod roe roh roo rop ror rot rpa rpc rpd rpe rph rpo rpp rpr rpt rra rrc rrd rrh rrp rrr rrt rta rtc rtd rte rto rtp rtr rtt taa tac tad tae tah tao tap tar tat tca tcc tcd tce tch tco tcp tcr tct tda tdc tdd tde tdh tdo tdp tdr tdt te- tea tec ted tee teh teo tep ter tet th- tha thc thd the thh tho thp thr tht to- toa toc tod toe toh too top tor tot tpa tpc tpd tpe tph tpo tpp tpr tpt tra trc trd tre trh tro trp trr trt tta ttc ttd tte tth tto ttp ttr ttt