-ol b-p bbb bbd bbl bbo bbp bbr bbs bbt bdb bdd bdl bdo bdp bdr bds bdt blb bld bll blo blp blr bls blt bob bod bol boo bop bor bos bot bpb bpd bpl bpo bpp bpr bps bpt brb brd brl bro brp brr brs brt bsb bsd bsl bso bsp bsr bss bst btb btd btl bto btp btr bts btt dbb dbd dbl dbo dbp dbr dbs dbt ddb ddd ddl ddo ddp ddr dds ddt dl- dlb dld dll dlo dlp dlr dls dlt dob dod dol doo dop dor dos dot dpb dpd dpl dpo dpp dpr dps dpt drb drd drl dro drp drr drs drt dsb dsd dsl dso dsp dsr dss dst dtb dtd dtl dto dtp dtr dts dtt l-p lbb lbd lbl lbo lbp lbr lbs lbt ldb ldd ldl ldo ldp ldr lds ldt llb lld lll llo llp llr lls llt lob lod lol loo lop lor los lot lpb lpd lpl lpo lpp lpr lps lpt lrb lrd lro lrp lrr lrs lrt lsb lsd lsl lso lsp lsr lss lst ltb ltd ltl lto ltp ltr lts ltt ob- obb obd obl obo obp obr obs obt odb odd odl odo odp odr ods odt olb old oll olo olp ols olt oo- oob ood ool ooo oop oor oos oot op- opb opd opl opo opp opr ops opt or- orb ord orl oro orp orr ors ort os- osb osd osl oso osp osr oss ost ot- otb otd otl oto otp otr ots ott p-p pbb pbd pbl pbo pbp pbr pbs pbt pdb pdd pdl pdo pdp pdr pds pdt plb pld pll plo plp plr pls plt pob pod pol poo pop por pos pot ppb ppd ppl ppo ppp ppr pps ppt prb prd prl pro prp prr prs prt ps- psb psd psl pso psp psr pss pst pt- ptb ptd ptl pto ptp ptr pts ptt rbb rbd rbl rbo rbp rbr rbs rbt rdb rdd rdl rdo rdp rdr rds rdt rld rll rlo rlp rlr rls rlt rob rod rol roo rop ror ros rot rpb rpd rpl rpo rpp rpr rps rpt rrb rrd rrl rrp rrr rrs rrt rsb rsd rsl rso rsp rsr rss rst rtb rtd rtl rto rtp rtr rts rtt sbb sbd sbl sbo sbp sbr sbs sbt sdb sdd sdl sdo sdp sdr sds sdt slb sld sll slo slp slr sls slt sob sod sol soo sop sor sos sot spb spd spl spo spp spr sps spt sr- srb srd srl sro srp srr srs srt ss- ssb ssd ssl sso ssp ssr sss sst stb std stl sto stp str sts stt tbb tbd tbl tbo tbp tbr tbs tbt tdb tdd tdl tdo tdp tdr tds tdt tld tll tlo tlp tlr tls tlt to- tob tod tol too top tor tos tot tpb tpd tpl tpo tpp tpr tps tpt trb trd trl tro trp trr trs trt tsb tsd tsl tso tsp tsr tss tst ttb ttd ttl tto ttp ttr tts ttt