-er -ol -th b-p bbb bbc bbe bbh bbl bbo bbp bbr bbs bbt bcb bcc bce bch bcl bco bcp bcr bcs bct be- beb bec bee beh bel beo bep ber bes bet bhb bhc bhe bhh bhl bho bhp bhr bhs bht blb blc ble blh bll blo blp blr bls blt bob boc boe boh bol boo bop bor bos bot bpb bpc bpe bph bpl bpo bpp bpr bps bpt brb bre brh brl bro brp brr brs brt bsb bsc bse bsh bsl bso bsp bsr bss bst btb btc bte bth btl bto btp btr bts btt c-- cbb cbc cbe cbh cbl cbo cbp cbr cbs cbt ccb ccc cce cch ccl cco ccp ccr ccs cct ce- ceb cec cee ceh cel ceo cep cer ces cet ch- chb chc che chh chl cho chp chr chs cht cl- clb clc cle clh cll clo clp clr cls clt co- cob coc coe coh col coo cop cor cos cot cpb cpc cpe cph cpl cpo cpp cpr cps cpt crb crc cre crh crl cro crp crr crs crt csb csc cse csh csl cso csp csr css cst ctb ctc cte cth ctl cto ctp ctr cts ctt ebb ebc ebe ebh ebl ebo ebp ebr ebs ebt ec- ecb ecc ece ech ecl eco ecr ecs ect eeb eec eee eel eeo eep eer ees eet ehb ehc ehe ehh ehl eho ehp ehr ehs eht elb elc ele elh ell elo elp elr els elt eo- eob eoc eoe eoh eol eoo eop eor eos eot ep- epb epc epe eph epl epo epp epr eps ept erb erc ere erh erl ero erp err ers ert es- esb esc ese esh esl eso esp esr ess est etb etc ete eth etl eto etp etr ets ett hbb hbc hbe hbh hbl hbo hbp hbr hbs hbt hcb hcc hce hch hcl hco hcp hcr hcs hct he- heb hec hee heh hel heo hep her hes het hhb hhc hhe hhh hhl hho hhp hhr hhs hht hlb hlc hle hlh hll hlo hlp hlr hls hlt hob hoc hoe hoh hol hoo hop hor hos hot hpb hpc hpe hph hpl hpo hpp hpr hps hpt hr- hrb hrc hre hrh hrl hro hrp hrr hrs hrt hsb hsc hse hsh hsl hsp hsr hss hst htb htc hte hth htl hto htp htr hts htt l-p lbb lbc lbe lbh lbl lbo lbp lbr lbs lbt lcb lcc lce lch lcl lco lcp lcr lcs lct leb lec lee leh lel leo lep ler les let lhb lhc lhh lho lhp lhr lhs lht llb llc lle lll llo llp llr lls llt lob loc loe loh lol loo lop lor los lot lpb lpc lpe lph lpl lpo lpp lpr lps lpt lrb lrc lrh lro lrp lrr lrs lrt lsb lsc lse lsh lsl lso lsp lsr lss lst ltb ltc lte lth ltl lto ltp ltr lts ltt ob- obb obc obe obh obl obo obp obr obs obt oc- ocb occ och ocl oco ocp ocr ocs oct oeb oec oee oeh oel oeo oep oer oes oet ohc ohe ohh ohl oho ohp ohr ohs oht olb olc ole oll olo olp ols olt oo- oob ooc ooh ool ooo oop oor oos oot op- opb opc ope oph opl opo opp opr ops opt or- orb orc ore orh orl oro orp orr ors ort os- osb osc ose osh osl oso osp osr oss ost ot- otb otc ote oth otl oto otp otr ots ott p-p pbb pbc pbe pbl pbo pbp pbr pbs pbt pcb pcc pce pch pcl pco pcp pcr pcs pct peb pec pee peh pel peo pep per pes pet phb phc phe phl pho php phr phs pht plb plc ple plh pll plo plp plr pls plt pob poc poe poh pol poo pop por pos pot ppb ppc ppe pph ppl ppo ppp ppr pps ppt prb prc pre prh prl pro prp prr prs prt ps- psb psc pse psh psl pso psp psr pss pst pt- ptb ptc pte pth ptl pto ptp ptr pts ptt rbb rbc rbe rbh rbl rbo rbp rbr rbs rbt rcb rcc rce rch rcl rco rcp rcr rcs rct re- reb rec ree reh rel reo rep rer res ret rh- rhb rhc rhe rhh rhl rho rhp rhr rhs rht rlc rle rlh rll rlo rlp rlr rls rlt rob roc roe roh rol roo rop ror ros rot rpb rpc rpe rph rpl rpo rpp rpr rps rpt rrb rrc rrh rrl rrp rrr rrs rrt rsb rsc rse rsh rsl rso rsp rsr rss rst rtb rtc rte rtl rto rtp rtr rts rtt sbb sbc sbe sbh sbl sbo sbp sbr sbs sbt scb scc sce sch scl sco scp scr scs sct se- seb sec see seh sel seo sep ser ses set sh- shb shc she shh shl sho shp shr shs sht slb slc sle slh sll slo slp slr sls slt sob soc soe soh sol soo sop sor sos sot spb spc spe sph spl spo spp spr sps spt sr- srb src sre srh srl sro srp srr srs srt ss- ssb ssc sse ssh ssl sso ssp ssr sss sst stb stc ste sth stl sto stp str sts stt tbb tbc tbe tbh tbl tbo tbp tbr tbs tbt tcb tcc tce tch tcl tco tcp tcr tcs tct te- teb tec tee teh tel teo tep ter tes tet th- thb thc the thh thl tho thp thr ths tht tlc tle tlh tll tlo tlp tlr tls tlt to- tob toc toe toh tol too top tor tos tot tpb tpc tpe tph tpl tpo tpp tpr tps tpt trb trc tre trh trl tro trp trr trs trt tsb tsc tse tsh tsl