-er -ic -th b-p bbb bbc bbe bbh bbi bbo bbp bbr bbs bbt bcb bcc bce bch bci bco bcp bcr bcs bct be- beb bec bee beh bei beo bep ber bes bet bhb bhc bhe bhh bhi bho bhp bhr bhs bht bi- bib bic bie bih bii bio bip bir bis bit bob boc boe boh boi boo bop bor bos bot bpb bpc bpe bph bpi bpo bpp bpr bps bpt brb bre brh bri bro brp brr brs brt bsb bsc bse bsh bsi bso bsp bsr bss bst btb btc bte bth bti bto btp btr bts btt c-- cbb cbc cbe cbh cbi cbo cbp cbr cbs cbt ccb ccc cce cch cci cco ccp ccr ccs cct ce- ceb cec cee ceh cei ceo cep cer ces cet ch- chb chc che chh chi cho chp chr chs cht ci- cib cic cie cih cii cio cip cir cis cit co- cob coc coe coh coi coo cop cor cos cot cpb cpc cpe cph cpi cpo cpp cpr cps cpt crb crc cre crh cri cro crp crr crs crt csb csc cse csh csi cso csp csr css cst ctb ctc cte cth cti cto ctp ctr cts ctt ebb ebc ebe ebh ebi ebo ebp ebr ebs ebt ec- ecb ecc ece ech eci eco ecr ecs ect eeb eec eee eeo eep eer ees eet ehb ehc ehe ehh ehi eho ehp ehr ehs eht eib eic eie eii eio eip eir eis eit eo- eob eoc eoe eoh eoi eoo eop eor eos eot ep- epb epc epe eph epi epo epp epr eps ept erb erc ere erh eri ero erp err ers ert es- esb esc ese esh esi eso esp esr ess est etb etc ete eth eti eto etp etr ets ett h-i hbb hbc hbe hbh hbi hbo hbp hbr hbs hbt hcb hcc hce hch hci hco hcp hcr hcs hct he- heb hec hee heh hei heo hep her hes het hhb hhc hhe hhh hhi hho hhp hhr hhs hht hib hic hie hih hii hio hip hir his hit hob hoc hoe hoh hoi hoo hop hor hos hot hpb hpc hpe hph hpi hpo hpp hpr hps hpt hr- hrb hrc hre hrh hri hro hrp hrr hrs hrt hsb hsc hse hsh hsi hsp hsr hss hst htb htc hte hth hti hto htp htr hts htt ibb ibc ibe ibh ibi ibo ibp ibr ibs ibt icb icc ice ich ici ico icp icr ics ict ie- iec iee iei iep ier ies iet ihb ihc ihe ihh ihi iho ihp ihr ihs iht iib iic iie iih iii iio iip iir iis iit io- iob ioc ioe ioh ioi ioo iop ior ios iot ipb ipc ipe ipi ipo ipp ipr ips ipt ir- irb irc ire iri iro irp irr irs irt is- isb isc ise ish isi iso isp isr iss ist itb itc ite ith iti ito itp its itt o-i ob- obb obc obe obh obi obo obp obr obs obt oc- ocb occ och oci oco ocp ocr ocs oct oeb oec oee oeh oei oeo oep oer oes oet ohc ohe ohh ohi oho ohp ohr ohs oht oib oic oie oii oio oip oir ois oit oo- oob ooc ooh ooi ooo oop oor oos oot op- opb opc ope oph opi opo opp opr ops opt or- orb orc ore orh ori oro orp orr ors ort os- osb osc ose osh osi oso osp osr oss ost ot- otb otc ote oth oti oto otp otr ots ott p-p pbb pbc pbe pbi pbo pbp pbr pbs pbt pcb pcc pce pch pci pco pcp pcr pcs pct peb pec pee peh pei peo pep per pes pet phb phc phe phi pho php phr phs pht pib pic pie pih pii pio pip pir pis pit pob poc poe poh poi poo pop por pos pot ppb ppc ppe pph ppi ppo ppp ppr pps ppt prb prc pre prh pri pro prp prr prs prt ps- psb psc pse psh psi pso psp psr pss pst pt- ptb ptc pte pth pti pto ptp ptr pts ptt rbb rbc rbe rbh rbi rbo rbp rbr rbs rbt rcb rcc rce rch rci rco rcp rcr rcs rct re- reb rec ree reh rei reo rep rer res ret rh- rhb rhc rhe rhh rhi rho rhp rhr rhs rht rib ric rie rih rii rio rip rir ris rit rob roc roe roh roi roo rop ror ros rot rpb rpc rpe rph rpi rpo rpp rpr rps rpt rrb rrc rrh rri rrp rrr rrs rrt rsb rsc rse rsh rsi rso rsp rsr rss rst rtb rtc rte rti rto rtp rtr rts rtt sbb sbc sbe sbh sbi sbo sbp sbr sbs sbt scb scc sce sch sci sco scp scr scs sct se- seb sec see seh sei seo sep ser ses set sh- shb shc she shh shi sho shp shr shs sht sib sic sie sih sii sio sip sir sis sit sob soc soe soh soi soo sop sor sos sot spb spc spe sph spi spo spp spr sps spt sr- srb src sre srh sri sro srp srr srs srt ss- ssb ssc sse ssh ssi sso ssp ssr sss sst stb stc ste sth sti sto stp str sts stt tbb tbc tbe tbh tbi tbo tbp tbr tbs tbt tcb tcc tce tch tci tco tcp tcr tcs tct te- teb tec tee teh tei teo tep ter tes tet th- thb thc the thh thi tho thp thr ths tht tib tic tie tih tii tio tip tir tis tit to- tob toc toe toh toi too top tor tos tot tpb tpc tpe tph tpi tpo tpp tpr tps tpt trb trc tre trh tri tro trp trr trs