-er -th a-a a-c a-t aaa aac aae aah aak aao aap aar aat ac- aca acc ace ach ack aco acp acr act aea aec aee aeh aek aeo aep aer aet aha ahc ahe ahh ahk aho ahp ahr aht aka akc ake akh akk ako akp akr aoa aoc aoe aoh aok aoo aop aor aot ap- apa apc ape aph apk apo app apr apt ar- ara arc are arh ark aro arp arr art at- ata atc ate ath ato atp atr att c-- caa cac cae cah cak cao cap car cat cca ccc cce cch cck cco ccp ccr cct ce- cea cec cee ceh cek ceo cep cer cet ch- cha chc che chh chk cho chp chr cht cka ckc ckh cko ckt co- coa coc coe coh cok coo cop cor cot cpa cpc cpe cph cpk cpo cpp cpr cpt cra crc cre crh crk cro crp crr crt cta ctc cte cth ctk cto ctp ctr ctt eaa eac eae eah eak eao eap ear eat ec- eca ecc ece ech eck eco ecr ect eea eec eee eek eeo eep eer eet eha ehc ehe ehh eho ehp ehr eht eka ekc eke ekh eko ekp ekr ekt eo- eoa eoc eoe eoh eok eoo eop eor eot ep- epa epc epe eph epo epp epr ept era erc ere erh erk ero erp err ert eta etc ete eth etk eto etp etr ett haa hac hae hah hak hao hap har hat hca hcc hce hch hck hco hcp hcr hct he- hea hec hee heh hek heo hep her het hha hhc hhe hhh hhk hho hhp hhr hht hka hkh hkk hko hkp hkr hkt hoa hoc hoe hoh hok hoo hop hor hot hpa hpc hpe hph hpk hpo hpp hpr hpt hr- hra hrc hre hrh hrk hro hrp hrr hrt hta htc hte hth htk hto htp htr htt k-t ka- kaa kac kae kah kak kao kap kar kat kca kcc kce kch kck kcp kcr kct ke- kea kec kee keh kek keo kep ker ket kha khe khh khk kho khr kkc kke kkh kkk kkp kkr kkt koa koc koe koh kok koo kop kor kot kpa kpc kpe kph kpk kpo kpp kpr kpt kra krc krk kro krp krr krt kta ktc kte kth ktk kto ktp ktr ktt oaa oac oae oah oak oao oap oar oat oc- oca occ och ock oco ocp ocr oct oea oec oee oeh oeo oep oer oet oha ohc ohe ohh oho ohp ohr oht oka okc oke okk oko okp okr oo- ooa ooc ooh ook ooo oop oor oot op- opa opc ope oph opk opo opp opr opt or- ora orc ore orh ork oro orp orr ort ot- ota otc ote oth otk oto otp otr ott p-p paa pac pae pah pak pao pap par pat pca pcc pce pch pck pco pcp pcr pct pea pec pee peh pek peo pep per pet pha phc phe phk pho php phr pht pka pkc pke pko pkp pkr pkt poa poc poe poh pok poo pop por pot ppa ppc ppe pph ppk ppo ppp ppr ppt pra prc pre prh prk pro prp prr prt pt- pta ptc pte pth ptk pto ptp ptr ptt ra- raa rac rae rah rak rao rap rar rat rca rcc rce rch rco rcp rcr rct re- rea rec ree reh rek reo rep rer ret rh- rha rhc rhe rhh rho rhp rhr rht rkc rke rkk rko rkp rkt roa roc roe roh rok roo rop ror rot rpa rpc rpe rph rpk rpo rpp rpr rpt rra rrc rrh rrk rrp rrr rrt rta rtc rte rtk rto rtp rtr rtt taa tac tae tah tak tao tap tar tat tca tcc tce tch tck tco tcp tcr tct te- tea tec tee teh tek teo tep ter tet th- tha thc the thh thk tho thp thr tht tka tkc tke tkk tko tkp tkr tkt to- toa toc toe toh tok too top tor tot tpa tpc tpe tph tpk tpo tpp tpr tpt tra trc tre trh trk tro trp trr trt tta ttc tte tth ttk tto ttp ttr ttt