-er -ol -th c-- ccc cce cch ccl cco ccp ccr cct ce- cec cee ceh cel ceo cep cer cet ch- chc che chh chl cho chp chr cht cl- clc cle clh cll clo clp clr clt co- coc coe coh col coo cop cor cot cpc cpe cph cpl cpo cpp cpr cpt crc cre crh crl cro crp crr crt ctc cte cth ctl cto ctp ctr ctt ec- ecc ece ech ecl eco ecr ect eec eee eel eeo eep eer eet ehc ehe ehh ehl eho ehp ehr eht elc ele elh ell elo elp elr elt eo- eoc eoe eoh eol eoo eop eor eot ep- epc epe eph epl epo epp epr ept erc ere erh erl ero erp err ert etc ete eth etl eto etp etr ett hcc hce hch hcl hco hcp hcr hct he- hec hee heh hel heo hep her het hhc hhe hhh hhl hho hhp hhr hht hlc hle hlh hll hlo hlp hlr hlt hoc hoe hoh hol hoo hop hor hot hpc hpe hph hpl hpo hpp hpr hpt hr- hrc hre hrh hrl hro hrp hrr hrt htc hte hth htl hto htp htr htt l-p lcc lce lch lcl lco lcp lcr lct lec lee leh lel leo lep ler let lhc lhh lho lhp lhr lht llc lle lll llo llp llr llt loc loe loh lol loo lop lor lot lpc lpe lph lpl lpo lpp lpr lpt lrc lrh lro lrp lrr lrt ltc lte lth ltl lto ltp ltr ltt oc- occ och ocl oco ocp ocr oct oec oee oeh oel oeo oep oer oet ohc ohe ohh ohl oho ohp ohr oht olc ole oll olo olp olt oo- ooc ooh ool ooo oop oor oot op- opc ope oph opl opo opp opr opt or- orc ore orh orl oro orp orr ort ot- otc ote oth otl oto otp otr ott p-p pcc pce pch pcl pco pcp pcr pct pec pee peh pel peo pep per pet phc phe phl pho php phr pht plc ple plh pll plo plp plr plt poc poe poh pol poo pop por pot ppc ppe pph ppl ppo ppp ppr ppt prc pre prh prl pro prp prr prt pt- ptc pte pth ptl pto ptp ptr ptt rcc rce rch rcl rco rcp rcr rct re- rec ree reh rel reo rep rer ret rh- rhc rhe rhh rhl rho rhp rhr rht rlc rle rlh rll rlo rlp rlr rlt roc roe roh rol roo rop ror rot rpc rpe rph rpl rpo rpp rpr rpt rrc rrh rrl rrp rrr rrt rtc rte rtl rto rtp rtr rtt tcc tce tch tcl tco tcp tcr tct te- tec tee teh tel teo tep ter tet th- thc the thh thl tho thp thr tht tlc tle tlh tll tlo tlp tlr tlt to- toc toe toh tol too top tor tot tpc tpe tph tpl tpo tpp tpr tpt trc tre trh trl tro trp trr trt ttc tte tth ttl tto ttp ttr ttt