bbb bbi bbm bbn bbo bbr bbs bi- bib bii bim bin bio bir bis bmb bmi bmm bmn bmo bmr bms bnb bni bnn bno bnr bns bob boi bom bon boo bor bos brb bri brm brn bro brr brs bsb bsi bsm bsn bso bsr bss ibb ibi ibm ibn ibo ibr ibs iib iii iim iin iio iir iis im- imb imi imm imn imo ims in- inb ini inm inn ino inr ins io- iob ioi iom ion ioo ior ios ir- irb iri irm irn iro irr irs is- isb isi ism isn iso isr iss m-o m-r mbb mbi mbm mbo mbr mbs mi- mib mii mim min mio mir mis mmb mmi mmm mmn mmo mmr mms mnb mni mnm mnn mno mnr mns mob moi mom mon moo mor mos mrb mri mrm mrn mro mrr mrs msb msi msm msn mso msr mss n-i nbb nbi nbm nbn nbo nbr nbs nib nii nim nin nio nir nis nmb nmi nmm nmn nmo nmr nms nnb nni nnm nnn nno nns no- nob noi nom non noo nor nos nrb nri nrm nrn nro nrr nrs nsb nsi nsm nsn nso nsr nss o-i ob- obb obi obm obn obo obr obs oib oii oim oin oio oir ois om- omb omi omm omn omo omr oms on- onb oni onn ono onr ons oo- oob ooi oom oon ooo oor oos or- orb ori orm orn oro orr ors os- osb osi osm osn oso osr oss rbb rbi rbm rbn rbo rbr rbs rib rii rim rin rio rir ris rmb rmi rmm rmn rmo rmr rms rnb rni rnm rnn rno rnr rns rob roi rom ron roo ror ros rrb rri rrm rrn rrr rrs rsb rsi rsm rsn rso rsr rss sbb sbi sbm sbn sbo sbr sbs sib sii sim sin sio sir sis smb smi smm smn smo smr sms snb sni snm snn sno snr sns sob soi som son soo sor sos sr- srb sri srm srn sro srr srs ss- ssb ssi ssm ssn sso ssr sss