-er -th a-a a-c a-t aaa aac aad aae aah aak aao aar aat ac- aca acc acd ace ach ack aco acr act ad- ada adc add ade adh adk ado adr adt aea aec aed aee aeh aek aeo aer aet aha ahc ahd ahe ahh ahk aho ahr aht aka akc akd ake akh akk ako akr aoa aoc aod aoe aoh aok aoo aor aot ar- ara arc ard are arh ark aro arr art at- ata atc atd ate ath ato atr att c-- caa cac cad cae cah cak cao car cat cca ccc ccd cce cch cck cco ccr cct cda cdc cdd cde cdh cdk cdo cdr cdt ce- cea cec ced cee ceh cek ceo cer cet ch- cha chc chd che chh chk cho chr cht cka ckc ckd ckh cko ckt co- coa coc cod coe coh cok coo cor cot cra crc crd cre crh crk cro crr crt cta ctc ctd cte cth ctk cto ctr ctt daa dac dad dae dah dak dao dar dat dca dcc dcd dce dck dco dcr dct dda ddc ddd dde ddh ddk ddo ddr ddt de- dea dec ded dee deh dek deo der det dh- dha dhc dhd dhe dhh dhk dho dhr dht dka dkc dke dkk dko dkr dkt doa doc dod doe doh dok doo dor dot dra drc drd dre drk dro drr drt dta dtc dtd dte dth dtk dto dtr dtt eaa eac ead eae eah eak eao ear eat ec- eca ecc ecd ece ech eck eco ecr ect ed- eda edc edd ede edh edk edo edr edt eea eec eed eee eek eeo eer eet eha ehc ehd ehe ehh eho ehr eht eka ekc ekd eke ekh eko ekr ekt eo- eoa eoc eod eoe eoh eok eoo eor eot era erc erd ere erh erk ero err ert eta etc etd ete eth etk eto etr ett haa hac had hae hah hak hao har hat hca hcc hcd hce hch hck hco hcr hct hda hdc hdd hde hdh hdk hdo hdr hdt he- hea hec hed hee heh hek heo her het hha hhc hhd hhe hhh hhk hho hhr hht hka hkd hkh hkk hko hkr hkt hoa hoc hod hoe hoh hok hoo hor hot hr- hra hrc hrd hre hrh hrk hro hrr hrt hta htc htd hte hth htk hto htr htt k-t ka- kaa kac kad kae kah kak kao kar kat kca kcc kcd kce kch kck kcr kct kda kdc kde kdh kdk kdo kdr kdt ke- kea kec ked kee keh kek keo ker ket kha khe khh khk kho khr kkc kke kkh kkk kkr kkt koa koc kod koe koh kok koo kor kot kra krc krd krk kro krr krt kta ktc kte kth ktk kto ktr ktt oaa oac oad oae oah oak oao oar oat oc- oca occ ocd och ock oco ocr oct oda odc odd ode odh odo odr odt oea oec oed oee oeh oeo oer oet oha ohc ohd ohe ohh oho ohr oht oka okc okd oke okk oko okr oo- ooa ooc ood ooh ook ooo oor oot or- ora orc ord ore orh ork oro orr ort ot- ota otc otd ote oth otk oto otr ott ra- raa rac rad rae rah rak rao rar rat rca rcc rcd rce rch rco rcr rct rda rdc rdd rde rdh rdo rdr rdt re- rea rec red ree reh rek reo rer ret rh- rha rhc rhd rhe rhh rho rhr rht rkc rke rkk rko rkt roa roc rod roe roh rok roo ror rot rra rrc rrd rrh rrk rrr rrt rta rtc rtd rte rtk rto rtr rtt taa tac tad tae tah tak tao tar tat tca tcc tcd tce tch tck tco tcr tct tda tdc tdd tde tdh tdk tdo tdr tdt te- tea tec ted tee teh tek teo ter tet th- tha thc thd the thh thk tho thr tht tka tkc tke tkk tko tkr tkt to- toa toc tod toe toh tok too tor tot tra trc trd tre trh trk tro trr trt tta ttc ttd tte tth ttk tto ttr ttt