-er -ic b-p bbb bbc bbe bbi bbl bbp bbr bbs bbt bcb bcc bce bci bcl bcp bcr bcs bct be- beb bec bee bei bel bep ber bes bet bi- bib bic bie bii bil bip bir bis bit blb blc ble bli bll blp blr bls blt bpb bpc bpe bpi bpl bpp bpr bps bpt brb bre bri brl brp brr brs brt bsb bsc bse bsi bsl bsp bsr bss bst btb btc bte bti btl btp btr bts btt c-- cbb cbc cbe cbi cbl cbp cbr cbs cbt ccb ccc cce cci ccl ccp ccr ccs cct ce- ceb cec cee cei cel cep cer ces cet ci- cib cic cie cii cil cip cir cis cit cl- clb clc cle cli cll clp clr cls clt cpb cpc cpe cpi cpl cpp cpr cps cpt crb crc cre cri crl crp crr crs crt csb csc cse csi csl csp csr css cst ctb ctc cte cti ctl ctp ctr cts ctt ebb ebc ebe ebi ebl ebp ebr ebs ebt ec- ecb ecc ece eci ecl ecr ecs ect eeb eec eee eel eep eer ees eet eib eic eie eii eil eip eir eis eit elb elc ele eli ell elp elr els elt ep- epb epc epe epi epl epp epr eps ept erb erc ere eri erl erp err ers ert es- esb esc ese esi esl esp esr ess est etb etc ete eti etl etp etr ets ett ibb ibc ibe ibi ibl ibp ibr ibs ibt icb icc ice ici icl icp icr ics ict ie- iec iee iei iel iep ier ies iet iib iic iie iii iil iip iir iis iit il- ilb ilc ile ili ill ilp ilr ils ilt ipb ipc ipe ipi ipl ipp ipr ips ipt ir- irb irc ire iri irl irp irr irs irt is- isb isc ise isi isl isp isr iss ist itb itc ite iti itl itp its itt l-p lbb lbc lbe lbi lbl lbp lbr lbs lbt lcb lcc lce lci lcl lcp lcr lcs lct leb lec lee lei lel lep ler les let lib lic lie lii lil lip lir lis lit llb llc lle lli lll llp llr lls llt lpb lpc lpe lpi lpl lpp lpr lps lpt lrb lrc lri lrp lrr lrs lrt lsb lsc lse lsi lsl lsp lsr lss lst ltb ltc lte lti ltl ltp ltr lts ltt p-p pbb pbc pbe pbi pbl pbp pbr pbs pbt pcb pcc pce pci pcl pcp pcr pcs pct peb pec pee pei pel pep per pes pet pib pic pie pii pil pip pir pis pit plb plc ple pli pll plp plr pls plt ppb ppc ppe ppi ppl ppp ppr pps ppt prb prc pre pri prl prp prr prs prt ps- psb psc pse psi psl psp psr pss pst pt- ptb ptc pte pti ptl ptp ptr pts ptt rbb rbc rbe rbi rbl rbp rbr rbs rbt rcb rcc rce rci rcl rcp rcr rcs rct re- reb rec ree rei rel rep rer res ret rib ric rie rii ril rip rir ris rit rlc rle rli rll rlp rlr rls rlt rpb rpc rpe rpi rpl rpp rpr rps rpt rrb rrc rri rrl rrp rrr rrs rrt rsb rsc rse rsi rsl rsp rsr rss rst rtb rtc rte rti rtl rtp rtr rts rtt sbb sbc sbe sbi sbl sbp sbr sbs sbt scb scc sce sci scl scp scr scs sct se- seb sec see sei sel sep ser ses set sib sic sie sii sil sip sir sis sit slb slc sle sli sll slp slr sls slt spb spc spe spi spl spp spr sps spt sr- srb src sre sri srl srp srr srs srt ss- ssb ssc sse ssi ssl ssp ssr sss sst stb stc ste sti stl stp str sts stt tbb tbc tbe tbi tbl tbp tbr tbs tbt tcb tcc tce tci tcl tcp tcr tcs tct te- teb tec tee tei tel tep ter tes tet tib tic tie tii til tip tir tis tit tlc tle tli tll tlp tlr tls tlt tpb tpc tpe tpi tpl tpp tpr tps tpt trb trc tre tri trl trp trr trs trt tsb tsc tse tsi tsl tsp tsr tss tst ttb ttc tte tti ttl ttp ttr tts ttt