-ol b-p bbb bbe bbl bbm bbn bbo bbp bbt be- beb bee bel bem ben beo bep bet blb ble bll blm bln blo blp blt bmb bme bml bmm bmn bmo bmp bmt bnb bne bnl bnn bno bnp bnt bob boe bol bom bon boo bop bot bpb bpe bpl bpm bpn bpo bpp bpt btb bte btl btm btn bto btp btt ebb ebe ebl ebm ebn ebo ebp ebt eeb eee eel eem een eeo eep eet elb ele ell elm eln elo elp elt em- emb eme eml emm emn emo emp emt en- enb ene enl enm enn eno enp ent eo- eob eoe eol eom eon eoo eop eot ep- epb epe epl epm epn epo epp ept etb ete etl etm etn eto etp ett l-p lbb lbe lbl lbm lbo lbp lbt leb lee lel lem len leo lep let llb lle lll llm lln llo llp llt lmb lme lml lmm lmn lmo lmp lmt lnb lne lnl lnm lnn lno lnp lnt lob loe lol lom lon loo lop lot lpb lpe lpl lpm lpn lpo lpp lpt ltb lte ltl ltm lto ltp ltt m-o mbb mbe mbl mbm mbo mbp mbt meb mee mel mem men meo mep met mlb mle mll mlm mln mlo mlp mlt mmb mme mml mmm mmn mmo mmp mmt mnb mne mnl mnm mnn mno mnp mnt mob moe mol mom mon moo mop mot mpb mpe mpl mpm mpn mpo mpp mpt mtb mte mtl mtm mtn mto mtp mtt nbb nbe nbl nbm nbn nbo nbp nbt ne- neb nee nel nem nen neo nep net nlb nle nll nlm nln nlo nlp nlt nmb nme nml nmm nmn nmo nmp nmt nnb nne nnl nnm nnn nno nnp nnt no- nob noe nol nom non noo nop not npb npe npl npm npn npo npp npt ntb nte ntm ntn nto ntp ntt ob- obb obe obl obm obn obo obp obt oeb oee oel oem oen oeo oep oet olb ole oll olm oln olo olp olt om- omb ome oml omm omn omo omp omt on- onb one onl onn ono onp ont oo- oob ool oom oon ooo oop oot op- opb ope opl opm opn opo opp opt ot- otb ote otl otm otn oto otp ott p-p pbb pbe pbl pbm pbn pbo pbp pbt peb pee pel pem pen peo pep pet plb ple pll plm pln plo plp plt pmb pme pml pmm pmn pmo pmp pmt pn- pnb pne pnl pnm pnn pno pnp pnt pob poe pol pom pon poo pop pot ppb ppe ppl ppm ppn ppo ppp ppt pt- ptb pte ptl ptm ptn pto ptp ptt tbb tbe tbl tbm tbn tbo tbp tbt te- teb tee tel tem ten teo tep tet tle tll tlm tln tlo tlp tlt tmb tme tml tmm tmn tmo tmp tmt tnb tne tnl tnm tnn tno tnp tnt to- tob toe tol tom ton too top tot tpb tpe tpl tpm tpn tpo tpp tpt ttb tte ttl ttm ttn tto ttp ttt