-er -ol c-- ccc cce cch cck ccl cco ccr ccs ccu ce- cec cee ceh cek cel ceo cer ces ceu ch- chc che chh chk chl cho chr chs chu ckc ckh cko cks cl- clc cle clh clk cll clo clr cls clu co- coc coe coh cok col coo cor cos cou crc cre crh crk crl cro crr crs cru csc cse csh csk csl cso csr css csu cuc cue cuh cuk cul cuo cur cus cuu ec- ecc ece ech eck ecl eco ecr ecs ecu eec eee eek eel eeo eer ees ehc ehe ehh ehl eho ehr ehs ehu ekc eke ekh ekl eko ekr eks eku elc ele elh elk ell elo elr els elu eo- eoc eoe eoh eok eol eoo eor eos eou erc ere erh erk erl ero err ers eru es- esc ese esh esk esl eso esr ess esu eu- euc eue eul eur eus hcc hce hch hck hcl hco hcr hcs he- hec hee heh hek hel heo her hes heu hhc hhe hhh hhk hhl hho hhr hhs hhu hkh hkk hkl hko hkr hks hku hlc hle hlh hll hlo hlr hls hlu hoc hoe hoh hok hol hoo hor hos hou hr- hrc hre hrh hrk hrl hro hrr hrs hru hsc hse hsh hsk hsl hsr hss hsu huc hue huh huk hul huo hur hus huu kcc kce kch kck kcl kcr kcs kcu ke- kec kee keh kek kel keo ker kes khe khh khk kho khr khs khu kkc kke kkh kkk kkl kkr kks kku kl- klc klh klo klr kls klu koc koe koh kok kol koo kor kos kou krc krk krl kro krr krs kru ksc kse ksh ksk ksl kso ksr kss ksu kuc kue kuh kuk kul kur kus kuu lcc lce lch lck lcl lco lcr lcs lcu lec lee leh lek lel leo ler les leu lhc lhh lhk lho lhr lhs lhu lkh lkl lkr lks llc lle llk lll llo llr lls llu loc loe loh lok lol loo lor los lou lrc lrh lrk lro lrr lrs lru lsc lse lsh lsk lsl lso lsr lss lsu luc lue luh luk lul luo lur lus luu oc- occ och ock ocl oco ocr ocs ocu oec oee oeh oel oeo oer oes ohc ohe ohh ohl oho ohr ohs ohu okc oke okk okl oko okr oks oku olc ole olk oll olo ols olu oo- ooc ooh ook ool ooo oor oos or- orc ore orh ork orl oro orr ors oru os- osc ose osh osk osl oso osr oss osu ou- ouc oue ouh ouk oul ouo our ous rcc rce rch rcl rco rcr rcs rcu re- rec ree reh rek rel reo rer res reu rh- rhc rhe rhh rhl rho rhr rhs rhu rkc rke rkk rko rks rku rlc rle rlh rll rlo rlr rls rlu roc roe roh rok rol roo ror ros rou rrc rrh rrk rrl rrr rrs rru rsc rse rsh rsk rsl rso rsr rss rsu ruc rue ruh ruk ruo rur rus ruu scc sce sch sck scl sco scr scs scu se- sec see seh sek sel seo ser ses seu sh- shc she shh shk shl sho shr shs shu sk- skc ske skh skk skl sko skr sks sku slc sle slh slk sll slo slr sls slu soc soe soh sok sol soo sor sos sou sr- src sre srh srk srl sro srr srs ss- ssc sse ssh ssk ssl sso ssr sss ssu suc sue suh suk sul suo sur sus suu ucc uce uch uck ucl uco ucr ucs ucu uec uee ueh uel uer ues uhc uhe uhh uhl uho uhr uhs uhu ukc uke ukk ukl ukr uku ulc ule ulk ull ulo ulr uls ulu uoc uoe uok uol uoo uor uos ur- urc ure urk url uro urr urs uru usc use ush usk usl uso usr uss usu uuc uue uur uus uuu