-ol b-p bbb bbi bbk bbl bbm bbo bbp bbr bi- bib bii bik bil bim bio bip bir bkb bkk bkl bkm bko bkp bkr blb bli blk bll blm blo blp blr bmb bmi bmk bml bmm bmo bmp bmr bob boi bok bol bom boo bop bor bpb bpi bpl bpm bpo bpp bpr brb bri brk brl brm bro brp brr ibb ibi ibk ibl ibm ibo ibp ibr iib iii iil iim iio iip iir ikb iki ikk ikl iko ikr il- ilb ili ilk ill ilm ilo ilp ilr im- imb imi iml imm imo imp io- iob ioi iol iom ioo iop ior ipb ipi ipl ipm ipo ipp ipr ir- irb iri irk irl irm iro irp irr kbb kbi kbk kbl kbm kbo kbp kbr kib kii kik kil kim kio kip kir kkb kki kkk kkl kkm kkp kkr kl- klb kli klm klo klr kmb kmi kmk kml kmm kmo kmp kob koi kok kol kom koo kop kor kpi kpk kpl kpm kpo kpp kpr kri krk krl kro krp krr l-p lbb lbi lbk lbl lbm lbo lbp lbr lib lii lik lil lim lio lip lir lkb lkl lkp lkr llb lli llk lll llm llo llp llr lmb lmi lmk lml lmm lmo lmp lmr lob loi lok lol lom loo lop lor lpb lpi lpk lpl lpm lpo lpp lpr lrb lri lrk lrm lro lrp lrr m-o m-r mbb mbi mbk mbl mbm mbo mbp mbr mi- mib mii mik mil mim mio mip mir mkb mkk mkl mkm mko mkp mkr mlb mli mlk mll mlm mlo mlp mlr mmb mmi mmk mml mmm mmo mmp mmr mob moi mok mol mom moo mop mor mpb mpi mpk mpl mpm mpo mpp mpr mrb mri mrk mrl mrm mro mrp mrr o-i ob- obb obi obk obl obm obo obp obr oib oii oik oil oim oio oip oir okb oki okk okl oko okp okr olb oli olk oll olm olo olp om- omb omi oml omm omo omp omr oo- oob ooi ook ool oom ooo oop oor op- opb opi opk opl opm opo opp opr or- orb ori ork orl orm oro orp orr p-p pbb pbi pbk pbl pbm pbo pbp pbr pib pii pik pil pim pio pip pir pkb pki pkl pkm pko pkp pkr plb pli plk pll plm plo plp plr pmb pmi pmk pml pmm pmo pmp pmr pob poi pok pol pom poo pop por ppb ppi ppk ppl ppm ppo ppp ppr prb pri prk prl prm pro prp prr rbb rbi rbk rbl rbm rbo rbp rbr rib rii rik ril rim rio rip rir rkb rkk rkm rko rkp rli rll rlm rlo rlp rlr rmb rmi rml rmm rmo rmp rmr rob roi rok rol rom roo rop ror rpb rpi rpk rpl rpm rpo rpp rpr rrb rri rrk rrl rrm rrp rrr