-er bbb bbe bbg bbi bbn bbo bbr be- beb bee beg bei ben beo ber bgb bge bgg bgi bgn bgo bgr bi- bib bie big bii bin bio bir bnb bne bng bni bnn bno bnr bob boe bog boi bon boo bor brb bre brg bri brn bro brr ebb ebe ebg ebi ebn ebo ebr eeb eee eeg een eeo eer egb ege egg egi egn ego egr eib eie eig eii ein eio eir en- enb ene eng eni enn eno enr eo- eob eoe eog eoi eon eoo eor erb ere erg eri ern ero err gbe gbg gbi gbn gbo gbr ge- geb gee geg gei gen geo ger ggb ggg ggi ggn ggo ggr gib gie gig gii gin gio gir gnb gne gni gnn gno gnr gob goe gog goi gon goo gor grb gre grg gri grn gro grr ibb ibe ibg ibi ibn ibo ibr ie- iee ieg iei ien ier igb ige igg igi ign igo igr iib iie iii iin iio iir in- inb ine ing ini inn ino inr io- iob ioe iog ioi ion ioo ior ir- irb ire irg iri irn iro irr n-i nbb nbe nbg nbi nbn nbo nbr ne- neb nee neg nei nen neo ner ngb nge ngg ngi ngn ngo nib nie nig nii nin nio nir nnb nne nng nni nnn nno no- nob noe nog noi non noo nor nrb nre nrg nri nrn nro nrr o-i ob- obb obe obg obi obn obo obr oeb oee oeg oei oen oeo oer oge ogg ogi ogn ogo oib oie oii oin oio oir on- onb one ong oni onn ono onr oo- oob oog ooi oon ooo oor or- orb ore org ori orn oro orr rbb rbe rbg rbi rbn rbo rbr re- reb ree reg rei ren reo rer rgb rge rgg rgi rgn rgo rgr rib rie rig rii rin rio rir rnb rng rni rnn rno rnr rob roe rog roi ron roo ror rrb rrg rri rrn rrr