-er -ji bbb bbe bbg bbi bbo bbr be- beb bee beg bei beo ber bgb bge bgg bgi bgo bgr bi- bib bie big bii bij bio bir bjg bji bjj bjr bob boe bog boi boj boo bor brb bre brg bri brj bro brr ebb ebe ebg ebi ebj ebo ebr eeb eee eeg eeo eer egb ege egg egi ego egr eib eie eig eii eij eio eir eji ejo eo- eob eoe eog eoi eoo eor erb ere erg eri ero err gbe gbg gbi gbj gbo gbr ge- geb gee geg gei geo ger ggb ggg ggi ggj ggo ggr gib gie gig gii gij gio gir gje gjg gjr gob goe gog goi goo gor grb gre grg gri grj gro grr ibb ibe ibg ibi ibj ibo ibr ie- iee ieg iei iej ier igb ige igg igi igo igr iib iie iii iij iio iir ijb ije ijg iji ijo io- iob ioe iog ioi ioj ioo ior ir- irb ire irg iri irj iro irr j-i jbg jbi jbj jbo jbr jeb jee jeg jei jej jeo jer jgb jge jgi jgo jgr jib jie jig jii jij jio jir jjb jjg jjj jjr job joe jog joi joj joo jor jrb jrg jri jro jrr o-i ob- obb obe obg obi obj obo obr oeb oee oeg oei oeo oer oge ogg ogi ogo oib oie oii oio oir ojb oje oji ojo oo- oob oog ooi ooo oor or- orb ore org ori oro orr rbb rbe rbg rbi rbo rbr re- reb ree reg rei reo rer rgb rge rgg rgi rgo rgr rib rie rig rii rio rir rjg rjr rob roe rog roi roj roo ror rrb rrg rri rrr