-ol b-p bbb bbe bbi bbl bbn bbo bbp bbs be- beb bee bei bel ben beo bep bes bi- bib bie bii bil bin bio bip bis blb ble bli bll bln blo blp bls bnb bne bni bnl bnn bno bnp bns bob boe boi bol bon boo bop bos bpb bpe bpi bpl bpn bpo bpp bps bsb bse bsi bsl bsn bso bsp bss ebb ebe ebi ebl ebn ebo ebp ebs eeb eee eel een eeo eep ees eib eie eii eil ein eio eip eis elb ele eli ell eln elo elp els en- enb ene eni enl enn eno enp ens eo- eob eoe eoi eol eon eoo eop eos ep- epb epe epi epl epn epo epp eps es- esb ese esi esl esn eso esp ess ibb ibe ibi ibl ibn ibo ibp ibs ie- iee iei iel ien iep ies iib iie iii iil iin iio iip iis il- ilb ile ili ill iln ilo ilp ils in- inb ine ini inl inn ino inp ins io- iob ioe ioi iol ion ioo iop ios ipb ipe ipi ipl ipn ipo ipp ips is- isb ise isi isl isn iso isp iss l-p lbb lbe lbi lbl lbo lbp lbs leb lee lei lel len leo lep les lib lie lii lil lin lio lip lis llb lle lli lll lln llo llp lls lnb lne lni lnl lnn lno lnp lns lob loe loi lol lon loo lop los lpb lpe lpi lpl lpn lpo lpp lps lsb lse lsi lsl lsn lso lsp lss n-i nbb nbe nbi nbl nbn nbo nbp nbs ne- neb nee nei nel nen neo nep nes nib nie nii nil nin nio nip nis nlb nle nli nll nln nlo nlp nls nnb nne nni nnl nnn nno nnp nns no- nob noe noi nol non noo nop nos npb npe npi npl npn npo npp nps nsb nse nsi nsl nsn nso nsp nss o-i ob- obb obe obi obl obn obo obp obs oeb oee oei oel oen oeo oep oes oib oie oii oil oin oio oip ois olb ole oli oll oln olo olp ols on- onb one oni onl onn ono onp ons oo- oob ooi ool oon ooo oop oos op- opb ope opi opl opn opo opp ops os- osb ose osi osl osn oso osp oss p-p pbb pbe pbi pbl pbn pbo pbp pbs peb pee pei pel pen peo pep pes pib pie pii pil pin pio pip pis plb ple pli pll pln plo plp pls pn- pnb pne pni pnl pnn pno pnp pns pob poe poi pol pon poo pop pos ppb ppe ppi ppl ppn ppo ppp pps ps- psb pse psi psl psn pso psp pss sbb sbe sbi sbl sbn sbo sbp sbs se- seb see sei sel sen seo sep ses sib sie sii sil sin sio sip sis slb sle sli sll sln slo slp sls snb sne sni snl snn sno snp sns sob soe soi sol son soo sop sos spb spe spi spl spn spo spp sps ss- ssb sse ssi ssl ssn sso ssp sss