-er bbb bbe bbi bbm bbn bbo bbr be- beb bee bei bem ben beo ber bi- bib bie bii bim bin bio bir bmb bme bmi bmm bmn bmo bmr bnb bne bni bnn bno bnr bob boe boi bom bon boo bor brb bre bri brm brn bro brr ebb ebe ebi ebm ebn ebo ebr eeb eee eem een eeo eer eib eie eii eim ein eio eir em- emb eme emi emm emn emo emr en- enb ene eni enm enn eno enr eo- eob eoe eoi eom eon eoo eor erb ere eri erm ern ero err ibb ibe ibi ibm ibn ibo ibr ie- iee iei iem ien ier iib iie iii iim iin iio iir im- imb ime imi imm imn imo in- inb ine ini inm inn ino inr io- iob ioe ioi iom ion ioo ior ir- irb ire iri irm irn iro irr m-o m-r mbb mbe mbi mbm mbo mbr meb mee mei mem men meo mer mi- mib mie mii mim min mio mir mmb mme mmi mmm mmn mmo mmr mnb mne mni mnm mnn mno mnr mob moe moi mom mon moo mor mrb mre mri mrm mrn mro mrr n-i nbb nbe nbi nbm nbn nbo nbr ne- neb nee nei nem nen neo ner nib nie nii nim nin nio nir nmb nme nmi nmm nmn nmo nmr nnb nne nni nnm nnn nno no- nob noe noi nom non noo nor nrb nre nri nrm nrn nro nrr o-i ob- obb obe obi obm obn obo obr oeb oee oei oem oen oeo oer oib oie oii oim oin oio oir om- omb ome omi omm omn omo omr on- onb one oni onn ono onr oo- oob ooi oom oon ooo oor or- orb ore ori orm orn oro orr rbb rbe rbi rbm rbn rbo rbr re- reb ree rei rem ren reo rer rib rie rii rim rin rio rir rmb rme rmi rmm rmn rmo rmr rnb rni rnm rnn rno rnr rob roe roi rom ron roo ror rrb rri rrm rrn rrr