-ol bbb bbi bbl bbm bbn bbo bbr bbs bi- bib bii bil bim bin bio bir bis blb bli bll blm bln blo blr bls bmb bmi bml bmm bmn bmo bmr bms bnb bni bnl bnn bno bnr bns bob boi bol bom bon boo bor bos brb bri brl brm brn bro brr brs bsb bsi bsl bsm bsn bso bsr bss ibb ibi ibl ibm ibn ibo ibr ibs iib iii iil iim iin iio iir iis il- ilb ili ill ilm iln ilo ilr ils im- imb imi iml imm imn imo ims in- inb ini inl inm inn ino inr ins io- iob ioi iol iom ion ioo ior ios ir- irb iri irl irm irn iro irr irs is- isb isi isl ism isn iso isr iss lbb lbi lbl lbm lbo lbr lbs lib lii lil lim lin lio lir lis llb lli lll llm lln llo llr lls lmb lmi lml lmm lmn lmo lmr lms lnb lni lnl lnm lnn lno lnr lns lob loi lol lom lon loo lor los lrb lri lrm lrn lro lrr lrs lsb lsi lsl lsm lsn lso lsr lss m-o m-r mbb mbi mbl mbm mbo mbr mbs mi- mib mii mil mim min mio mir mis mlb mli mll mlm mln mlo mlr mls mmb mmi mml mmm mmn mmo mmr mms mnb mni mnl mnm mnn mno mnr mns mob moi mol mom mon moo mor mos mrb mri mrl mrm mrn mro mrr mrs msb msi msl msm msn mso msr mss n-i nbb nbi nbl nbm nbn nbo nbr nbs nib nii nil nim nin nio nir nis nlb nli nll nlm nln nlo nlr nls nmb nmi nml nmm nmn nmo nmr nms nnb nni nnl nnm nnn nno nns no- nob noi nol nom non noo nor nos nrb nri nrl nrm nrn nro nrr nrs nsb nsi nsl nsm nsn nso nsr nss o-i ob- obb obi obl obm obn obo obr obs oib oii oil oim oin oio oir ois olb oli oll olm oln olo ols om- omb omi oml omm omn omo omr oms on- onb oni onl onn ono onr ons oo- oob ooi ool oom oon ooo oor oos or- orb ori orl orm orn oro orr ors os- osb osi osl osm osn oso osr oss rbb rbi rbl rbm rbn rbo rbr rbs rib rii ril rim rin rio rir ris rli rll rlm rln rlo rlr rls rmb rmi rml rmm rmn rmo rmr rms rnb rni rnm rnn rno rnr rns rob roi rol rom ron roo ror ros rrb rri rrl rrm rrn rrr rrs rsb rsi rsl rsm rsn rso rsr rss sbb sbi sbl sbm sbn sbo sbr sbs sib sii sil sim sin sio sir sis slb sli sll slm sln slo slr sls smb smi sml smm smn smo smr sms snb sni snl snm snn sno snr sns sob soi sol som son soo sor sos sr- srb sri srl srm srn sro srr srs ss- ssb ssi ssl ssm ssn sso ssr sss