-ol b-p bbb bbd bbl bbo bbp bbs bdb bdd bdl bdo bdp bds blb bld bll blo blp bls bob bod bol boo bop bos bpb bpd bpl bpo bpp bps bsb bsd bsl bso bsp bss dbb dbd dbl dbo dbp dbs ddb ddd ddl ddo ddp dds dl- dlb dld dll dlo dlp dls dob dod dol doo dop dos dpb dpd dpl dpo dpp dps dsb dsd dsl dso dsp dss l-p lbb lbd lbl lbo lbp lbs ldb ldd ldl ldo ldp lds llb lld lll llo llp lls lob lod lol loo lop los lpb lpd lpl lpo lpp lps lsb lsd lsl lso lsp lss ob- obb obd obl obo obp obs odb odd odl odo odp ods olb old oll olo olp ols oo- oob ood ool ooo oop oos op- opb opd opl opo opp ops os- osb osd osl oso osp oss p-p pbb pbd pbl pbo pbp pbs pdb pdd pdl pdo pdp pds plb pld pll plo plp pls pob pod pol poo pop pos ppb ppd ppl ppo ppp pps ps- psb psd psl pso psp pss sbb sbd sbl sbo sbp sbs sdb sdd sdl sdo sdp sds slb sld sll slo slp sls sob sod sol soo sop sos spb spd spl spo spp sps ss- ssb ssd ssl sso ssp sss