-er -ol b-p bbb bbe bbi bbl bbo bbp bbr bbs bbt be- beb bee bei bel beo bep ber bes bet bi- bib bie bii bil bio bip bir bis bit blb ble bli bll blo blp blr bls blt bob boe boi bol boo bop bor bos bot bpb bpe bpi bpl bpo bpp bpr bps bpt brb bre bri brl bro brp brr brs brt bsb bse bsi bsl bso bsp bsr bss bst btb bte bti btl bto btp btr bts btt ebb ebe ebi ebl ebo ebp ebr ebs ebt eeb eee eel eeo eep eer ees eet eib eie eii eil eio eip eir eis eit elb ele eli ell elo elp elr els elt eo- eob eoe eoi eol eoo eop eor eos eot ep- epb epe epi epl epo epp epr eps ept erb ere eri erl ero erp err ers ert es- esb ese esi esl eso esp esr ess est etb ete eti etl eto etp etr ets ett ibb ibe ibi ibl ibo ibp ibr ibs ibt ie- iee iei iel iep ier ies iet iib iie iii iil iio iip iir iis iit il- ilb ile ili ill ilo ilp ilr ils ilt io- iob ioe ioi iol ioo iop ior ios iot ipb ipe ipi ipl ipo ipp ipr ips ipt ir- irb ire iri irl iro irp irr irs irt is- isb ise isi isl iso isp isr iss ist itb ite iti itl ito itp its itt l-p lbb lbe lbi lbl lbo lbp lbr lbs lbt leb lee lei lel leo lep ler les let lib lie lii lil lio lip lir lis lit llb lle lli lll llo llp llr lls llt lob loe loi lol loo lop lor los lot lpb lpe lpi lpl lpo lpp lpr lps lpt lrb lri lro lrp lrr lrs lrt lsb lse lsi lsl lso lsp lsr lss lst ltb lte lti ltl lto ltp ltr lts ltt o-i ob- obb obe obi obl obo obp obr obs obt oeb oee oei oel oeo oep oer oes oet oib oie oii oil oio oip oir ois oit olb ole oli oll olo olp ols olt oo- oob ooi ool ooo oop oor oos oot op- opb ope opi opl opo opp opr ops opt or- orb ore ori orl oro orp orr ors ort os- osb ose osi osl oso osp osr oss ost ot- otb ote oti otl oto otp otr ots ott p-p pbb pbe pbi pbl pbo pbp pbr pbs pbt peb pee pei pel peo pep per pes pet pib pie pii pil pio pip pir pis pit plb ple pli pll plo plp plr pls plt pob poe poi pol poo pop por pos pot ppb ppe ppi ppl ppo ppp ppr pps ppt prb pre pri prl pro prp prr prs prt ps- psb pse psi psl pso psp psr pss pst pt- ptb pte pti ptl pto ptp ptr pts ptt rbb rbe rbi rbl rbo rbp rbr rbs rbt re- reb ree rei rel reo rep rer res ret rib rie rii ril rio rip rir ris rit rle rli rll rlo rlp rlr rls rlt rob roe roi rol roo rop ror ros rot rpb rpe rpi rpl rpo rpp rpr rps rpt rrb rri rrl rrp rrr rrs rrt rsb rse rsi rsl rso rsp rsr rss rst rtb rte rti rtl rto rtp rtr rts rtt sbb sbe sbi sbl sbo sbp sbr sbs sbt se- seb see sei sel seo sep ser ses set sib sie sii sil sio sip sir sis sit slb sle sli sll slo slp slr sls slt sob soe soi sol soo sop sor sos sot spb spe spi spl spo spp spr sps spt sr- srb sre sri srl sro srp srr srs srt ss- ssb sse ssi ssl sso ssp ssr sss sst stb ste sti stl sto stp str sts stt tbb tbe tbi tbl tbo tbp tbr tbs tbt te- teb tee tei tel teo tep ter tes tet tib tie tii til tio tip tir tis tit tle tli tll tlo tlp tlr tls tlt to- tob toe toi tol too top tor tos tot tpb tpe tpi tpl tpo tpp tpr tps tpt trb tre tri trl tro trp trr trs trt tsb tse tsi tsl tso tsp tsr tss tst ttb tte tti ttl tto ttp ttr tts ttt