-ol b-p bbb bbd bbi bbl bbn bbo bbp bbs bdb bdd bdi bdl bdo bdp bds bi- bib bid bii bil bin bio bip bis blb bld bli bll bln blo blp bls bnb bnd bni bnl bnn bno bnp bns bob bod boi bol bon boo bop bos bpb bpd bpi bpl bpn bpo bpp bps bsb bsd bsi bsl bsn bso bsp bss dbb dbd dbi dbl dbn dbo dbp dbs ddb ddd ddi ddl ddn ddo ddp dds di- dib did dii dil din dio dip dis dl- dlb dld dli dll dlo dlp dls dnb dnd dni dnl dnn dno dnp dns dob dod doi dol don doo dop dos dpb dpd dpi dpl dpn dpo dpp dps dsb dsd dsi dsl dsn dso dsp dss i-d ibb ibd ibi ibl ibn ibo ibp ibs idb idd idi idl idn ido idp ids iib iid iii iil iin iio iip iis il- ilb ild ili ill iln ilo ilp ils in- inb ind ini inl inn ino inp ins io- iob iod ioi iol ion ioo iop ios ipb ipd ipi ipl ipn ipo ipp ips is- isb isd isi isl isn iso isp iss l-p lbb lbd lbi lbl lbo lbp lbs ldb ldd ldi ldl ldn ldo ldp lds lib lid lii lil lin lio lip lis llb lld lli lll lln llo llp lls lnb lnd lni lnl lnn lno lnp lns lob lod loi lol lon loo lop los lpb lpd lpi lpl lpn lpo lpp lps lsb lsd lsi lsl lsn lso lsp lss n-i nbb nbd nbi nbl nbn nbo nbp nbs ndb ndd ndi ndl ndn ndo ndp nds nib nid nii nil nin nio nip nis nlb nld nli nll nln nlo nlp nls nnb nni nnl nnn nno nnp nns no- nob nod noi nol non noo nop nos npb npd npi npl npn npo npp nps nsb nsd nsi nsl nsn nso nsp nss o-i ob- obb obd obi obl obn obo obp obs odb odd odi odl odn odo odp ods oib oid oii oil oin oio oip ois olb old oli oll oln olo olp ols on- onb ond oni onl onn ono onp ons oo- oob ood ooi ool oon ooo oop oos op- opb opd opi opl opn opo opp ops os- osb osd osi osl osn oso osp oss p-p pbb pbd pbi pbl pbn pbo pbp pbs pdb pdd pdi pdl pdn pdo pdp pds pib pid pii pil pin pio pip pis plb pld pli pll pln plo plp pls pn- pnb pnd pni pnl pnn pno pnp pns pob pod poi pol pon poo pop pos ppb ppd ppi ppl ppn ppo ppp pps ps- psb psd psi psl psn pso psp pss sbb sbd sbi sbl sbn sbo sbp sbs sdb sdd sdi sdl sdn sdo sdp sds sib sid sii sil sin sio sip sis slb sld sli sll sln slo slp sls snb snd sni snl snn sno snp sns sob sod soi sol son soo sop sos spb spd spi spl spn spo spp sps ss- ssb ssd ssi ssl ssn sso ssp sss