-ol b-p bbb bbd bbi bbl bbo bbp bbs bdb bdd bdi bdl bdo bdp bds bi- bib bid bii bil bio bip bis blb bld bli bll blo blp bls bob bod boi bol boo bop bos bpb bpd bpi bpl bpo bpp bps bsb bsd bsi bsl bso bsp bss dbb dbd dbi dbl dbo dbp dbs ddb ddd ddi ddl ddo ddp dds di- dib did dii dil dio dip dis dl- dlb dld dli dll dlo dlp dls dob dod doi dol doo dop dos dpb dpd dpi dpl dpo dpp dps dsb dsd dsi dsl dso dsp dss i-d ibb ibd ibi ibl ibo ibp ibs idb idd idi idl ido idp ids iib iid iii iil iio iip iis il- ilb ild ili ill ilo ilp ils io- iob iod ioi iol ioo iop ios ipb ipd ipi ipl ipo ipp ips is- isb isd isi isl iso isp iss l-p lbb lbd lbi lbl lbo lbp lbs ldb ldd ldi ldl ldo ldp lds lib lid lii lil lio lip lis llb lld lli lll llo llp lls lob lod loi lol loo lop los lpb lpd lpi lpl lpo lpp lps lsb lsd lsi lsl lso lsp lss o-i ob- obb obd obi obl obo obp obs odb odd odi odl odo odp ods oib oid oii oil oio oip ois olb old oli oll olo olp ols oo- oob ood ooi ool ooo oop oos op- opb opd opi opl opo opp ops os- osb osd osi osl oso osp oss p-p pbb pbd pbi pbl pbo pbp pbs pdb pdd pdi pdl pdo pdp pds pib pid pii pil pio pip pis plb pld pli pll plo plp pls pob pod poi pol poo pop pos ppb ppd ppi ppl ppo ppp pps ps- psb psd psi psl pso psp pss sbb sbd sbi sbl sbo sbp sbs sdb sdd sdi sdl sdo sdp sds sib sid sii sil sio sip sis slb sld sli sll slo slp sls sob sod soi sol soo sop sos spb spd spi spl spo spp sps ss- ssb ssd ssi ssl sso ssp sss