-ol b-p bbb bbd bbi bbl bbo bbp bbr bbs bdb bdd bdi bdl bdo bdp bdr bds bi- bib bid bii bil bio bip bir bis blb bld bli bll blo blp blr bls bob bod boi bol boo bop bor bos bpb bpd bpi bpl bpo bpp bpr bps brb brd bri brl bro brp brr brs bsb bsd bsi bsl bso bsp bsr bss dbb dbd dbi dbl dbo dbp dbr dbs ddb ddd ddi ddl ddo ddp ddr dds di- dib did dii dil dio dip dir dis dl- dlb dld dli dll dlo dlp dlr dls dob dod doi dol doo dop dor dos dpb dpd dpi dpl dpo dpp dpr dps drb drd dri drl dro drp drr drs dsb dsd dsi dsl dso dsp dsr dss i-d ibb ibd ibi ibl ibo ibp ibr ibs idb idd idi idl ido idp idr ids iib iid iii iil iio iip iir iis il- ilb ild ili ill ilo ilp ilr ils io- iob iod ioi iol ioo iop ior ios ipb ipd ipi ipl ipo ipp ipr ips ir- irb ird iri irl iro irp irr irs is- isb isd isi isl iso isp isr iss l-p lbb lbd lbi lbl lbo lbp lbr lbs ldb ldd ldi ldl ldo ldp ldr lds lib lid lii lil lio lip lir lis llb lld lli lll llo llp llr lls lob lod loi lol loo lop lor los lpb lpd lpi lpl lpo lpp lpr lps lrb lrd lri lro lrp lrr lrs lsb lsd lsi lsl lso lsp lsr lss o-i ob- obb obd obi obl obo obp obr obs odb odd odi odl odo odp odr ods oib oid oii oil oio oip oir ois olb old oli oll olo olp ols oo- oob ood ooi ool ooo oop oor oos op- opb opd opi opl opo opp opr ops or- orb ord ori orl oro orp orr ors os- osb osd osi osl oso osp osr oss p-p pbb pbd pbi pbl pbo pbp pbr pbs pdb pdd pdi pdl pdo pdp pdr pds pib pid pii pil pio pip pir pis plb pld pli pll plo plp plr pls pob pod poi pol poo pop por pos ppb ppd ppi ppl ppo ppp ppr pps prb prd pri prl pro prp prr prs ps- psb psd psi psl pso psp psr pss rbb rbd rbi rbl rbo rbp rbr rbs rdb rdd rdi rdl rdo rdp rdr rds rib rid rii ril rio rip rir ris rld rli rll rlo rlp rlr rls rob rod roi rol roo rop ror ros rpb rpd rpi rpl rpo rpp rpr rps rrb rrd rri rrl rrp rrr rrs rsb rsd rsi rsl rso rsp rsr rss sbb sbd sbi sbl sbo sbp sbr sbs sdb sdd sdi sdl sdo sdp sdr sds sib sid sii sil sio sip sir sis slb sld sli sll slo slp slr sls sob sod soi sol soo sop sor sos spb spd spi spl spo spp spr sps sr- srb srd sri srl sro srp srr srs ss- ssb ssd ssi ssl sso ssp ssr sss