-ol b-p bbb bbl bbm bbo bbp bbr bbt blb bll blm blo blp blr blt bmb bml bmm bmo bmp bmr bmt bob bol bom boo bop bor bot bpb bpl bpm bpo bpp bpr bpt brb brl brm bro brp brr brt btb btl btm bto btp btr btt l-p lbb lbl lbm lbo lbp lbr lbt llb lll llm llo llp llr llt lmb lml lmm lmo lmp lmr lmt lob lol lom loo lop lor lot lpb lpl lpm lpo lpp lpr lpt lrb lrm lro lrp lrr lrt ltb ltl ltm lto ltp ltr ltt m-o m-r mbb mbl mbm mbo mbp mbr mbt mlb mll mlm mlo mlp mlr mlt mmb mml mmm mmo mmp mmr mmt mob mol mom moo mop mor mot mpb mpl mpm mpo mpp mpr mpt mrb mrl mrm mro mrp mrr mrt mtb mtl mtm mto mtp mtr mtt ob- obb obl obm obo obp obr obt olb oll olm olo olp olt om- omb oml omm omo omp omr omt oo- oob ool oom ooo oop oor oot op- opb opl opm opo opp opr opt or- orb orl orm oro orp orr ort ot- otb otl otm oto otp otr ott p-p pbb pbl pbm pbo pbp pbr pbt plb pll plm plo plp plr plt pmb pml pmm pmo pmp pmr pmt pob pol pom poo pop por pot ppb ppl ppm ppo ppp ppr ppt prb prl prm pro prp prr prt pt- ptb ptl ptm pto ptp ptr ptt rbb rbl rbm rbo rbp rbr rbt rll rlm rlo rlp rlr rlt rmb rml rmm rmo rmp rmr rmt rob rol rom roo rop ror rot rpb rpl rpm rpo rpp rpr rpt rrb rrl rrm rrp rrr rrt rtb rtl rtm rto rtp rtr rtt tbb tbl tbm tbo tbp tbr tbt tll tlm tlo tlp tlr tlt tmb tml tmm tmo tmp tmr tmt to- tob tol tom too top tor tot tpb tpl tpm tpo tpp tpr tpt trb trl trm tro trp trr trt ttb ttl ttm tto ttp ttr ttt