-ol b-p bbb bbe bbi bbl bbo bbp bbs bbt be- beb bee bei bel beo bep bes bet bi- bib bie bii bil bio bip bis bit blb ble bli bll blo blp bls blt bob boe boi bol boo bop bos bot bpb bpe bpi bpl bpo bpp bps bpt bsb bse bsi bsl bso bsp bss bst btb bte bti btl bto btp bts btt ebb ebe ebi ebl ebo ebp ebs ebt eeb eee eel eeo eep ees eet eib eie eii eil eio eip eis eit elb ele eli ell elo elp els elt eo- eob eoe eoi eol eoo eop eos eot ep- epb epe epi epl epo epp eps ept es- esb ese esi esl eso esp ess est etb ete eti etl eto etp ets ett ibb ibe ibi ibl ibo ibp ibs ibt ie- iee iei iel iep ies iet iib iie iii iil iio iip iis iit il- ilb ile ili ill ilo ilp ils ilt io- iob ioe ioi iol ioo iop ios iot ipb ipe ipi ipl ipo ipp ips ipt is- isb ise isi isl iso isp iss ist itb ite iti itl ito itp its itt l-p lbb lbe lbi lbl lbo lbp lbs lbt leb lee lei lel leo lep les let lib lie lii lil lio lip lis lit llb lle lli lll llo llp lls llt lob loe loi lol loo lop los lot lpb lpe lpi lpl lpo lpp lps lpt lsb lse lsi lsl lso lsp lss lst ltb lte lti ltl lto ltp lts ltt o-i ob- obb obe obi obl obo obp obs obt oeb oee oei oel oeo oep oes oet oib oie oii oil oio oip ois oit olb ole oli oll olo olp ols olt oo- oob ooi ool ooo oop oos oot op- opb ope opi opl opo opp ops opt os- osb ose osi osl oso osp oss ost ot- otb ote oti otl oto otp ots ott p-p pbb pbe pbi pbl pbo pbp pbs pbt peb pee pei pel peo pep pes pet pib pie pii pil pio pip pis pit plb ple pli pll plo plp pls plt pob poe poi pol poo pop pos pot ppb ppe ppi ppl ppo ppp pps ppt ps- psb pse psi psl pso psp pss pst pt- ptb pte pti ptl pto ptp pts ptt sbb sbe sbi sbl sbo sbp sbs sbt se- seb see sei sel seo sep ses set sib sie sii sil sio sip sis sit slb sle sli sll slo slp sls slt sob soe soi sol soo sop sos sot spb spe spi spl spo spp sps spt ss- ssb sse ssi ssl sso ssp sss sst stb ste sti stl sto stp sts stt tbb tbe tbi tbl tbo tbp tbs tbt te- teb tee tei tel teo tep tes tet tib tie tii til tio tip tis tit tle tli tll tlo tlp tls tlt to- tob toe toi tol too top tos tot tpb tpe tpi tpl tpo tpp tps tpt tsb tse tsi tsl tso tsp tss tst ttb tte tti ttl tto ttp tts ttt