-ol b-p bbb bbd bbl bbo bbp bbr bdb bdd bdl bdo bdp bdr blb bld bll blo blp blr bob bod bol boo bop bor bpb bpd bpl bpo bpp bpr brb brd brl bro brp brr dbb dbd dbl dbo dbp dbr ddb ddd ddl ddo ddp ddr dl- dlb dld dll dlo dlp dlr dob dod dol doo dop dor dpb dpd dpl dpo dpp dpr drb drd drl dro drp drr l-p lbb lbd lbl lbo lbp lbr ldb ldd ldl ldo ldp ldr llb lld lll llo llp llr lob lod lol loo lop lor lpb lpd lpl lpo lpp lpr lrb lrd lro lrp lrr ob- obb obd obl obo obp obr odb odd odl odo odp odr olb old oll olo olp oo- oob ood ool ooo oop oor op- opb opd opl opo opp opr or- orb ord orl oro orp orr p-p pbb pbd pbl pbo pbp pbr pdb pdd pdl pdo pdp pdr plb pld pll plo plp plr pob pod pol poo pop por ppb ppd ppl ppo ppp ppr prb prd prl pro prp prr rbb rbd rbl rbo rbp rbr rdb rdd rdl rdo rdp rdr rld rll rlo rlp rlr rob rod rol roo rop ror rpb rpd rpl rpo rpp rpr rrb rrd rrl rrp rrr