-er b-u bbb bbe bbg bbi bbn bbo bbr bbu be- beb bee beg bei ben beo ber beu bgb bge bgg bgi bgn bgo bgr bgu bi- bib bie big bii bin bio bir biu bnb bne bng bni bnn bno bnr bnu bob boe bog boi bon boo bor bou brb bre brg bri brn bro brr bru bub bue bug bui bun buo bur buu ebb ebe ebg ebi ebn ebo ebr ebu eeb eee eeg een eeo eer egb ege egg egi egn ego egr egu eib eie eig eii ein eio eir eiu en- enb ene eng eni enn eno enr enu eo- eob eoe eog eoi eon eoo eor eou erb ere erg eri ern ero err eru eu- eub eue eug eui eun eur gbe gbg gbi gbn gbo gbr gbu ge- geb gee geg gei gen geo ger geu ggb ggg ggi ggn ggo ggr ggu gib gie gig gii gin gio gir giu gnb gne gni gnn gno gnr gnu gob goe gog goi gon goo gor gou grb gre grg gri grn gro grr gru gu- gub gue gug gui gun guo gur guu ibb ibe ibg ibi ibn ibo ibr ibu ie- iee ieg iei ien ier igb ige igg igi ign igo igr igu iib iie iii iin iio iir iiu in- inb ine ing ini inn ino inr inu io- iob ioe iog ioi ion ioo ior iou ir- irb ire irg iri irn iro irr iru iu- iub iue iug iui iur n-i nbb nbe nbg nbi nbn nbo nbr nbu ne- neb nee neg nei nen neo ner neu ngb nge ngg ngi ngn ngo ngu nib nie nig nii nin nio nir niu nnb nne nng nni nnn nno nnu no- nob noe nog noi non noo nor nou nrb nre nrg nri nrn nro nrr nru nub nue nug nui nun nuo nur nuu o-i ob- obb obe obg obi obn obo obr obu oeb oee oeg oei oen oeo oer oge ogg ogi ogn ogo oib oie oii oin oio oir oiu on- onb one ong oni onn ono onr onu oo- oob oog ooi oon ooo oor or- orb ore org ori orn oro orr oru ou- oue oui oun ouo our rbb rbe rbg rbi rbn rbo rbr rbu re- reb ree reg rei ren reo rer reu rgb rge rgg rgi rgn rgo rgr rib rie rig rii rin rio rir rnb rng rni rnn rno rnr rnu rob roe rog roi ron roo ror rou rrb rrg rri rrn rrr rru rub rue rug rui run ruo rur ruu ubb ube ubg ubi ubn ubo ubr ubu ueb uee ueg uei uen uer ugb uge ugg ugi ugn ugo ugr ugu uib uie uig uii uin uio uir uiu un- unb une ung uni unn uno unr unu uob uoe uog uon uoo uor ur- urb ure urg uri urn uro urr uru uue uug uun uur uuu