-er -ji bbb bbe bbg bbi bbo bbr bbs be- beb bee beg bei beo ber bes bgb bge bgg bgi bgo bgr bgs bi- bib bie big bii bij bio bir bis bjg bji bjj bjr bjs bob boe bog boi boj boo bor bos brb bre brg bri brj bro brr brs bsb bse bsg bsi bsj bso bsr bss ebb ebe ebg ebi ebj ebo ebr ebs eeb eee eeg eeo eer ees egb ege egg egi ego egr egs eib eie eig eii eij eio eir eis eji ejo eo- eob eoe eog eoi eoo eor eos erb ere erg eri ero err ers es- esb ese esg esi eso esr ess gbe gbg gbi gbj gbo gbr gbs ge- geb gee geg gei geo ger ges ggb ggg ggi ggj ggo ggr ggs gib gie gig gii gij gio gir gis gje gjg gjr gob goe gog goi goo gor gos grb gre grg gri grj gro grr grs gsb gse gsg gsi gsj gso gsr gss ibb ibe ibg ibi ibj ibo ibr ibs ie- iee ieg iei iej ier ies igb ige igg igi igo igr igs iib iie iii iij iio iir iis ijb ije ijg iji ijo ijs io- iob ioe iog ioi ioj ioo ior ios ir- irb ire irg iri irj iro irr irs is- isb ise isg isi isj iso isr iss j-i jbg jbi jbj jbo jbr jbs jeb jee jeg jei jej jeo jer jes jgb jge jgi jgo jgr jgs jib jie jig jii jij jio jir jis jjb jjg jjj jjr jjs job joe jog joi joj joo jor jos jrb jrg jri jro jrr jrs jsb jse jsg jsi jsj jso jsr jss o-i ob- obb obe obg obi obj obo obr obs oeb oee oeg oei oeo oer oes oge ogg ogi ogo ogs oib oie oii oio oir ois ojb oje oji ojo ojs oo- oob oog ooi ooo oor oos or- orb ore org ori oro orr ors os- osb ose osg osi osj oso osr oss rbb rbe rbg rbi rbo rbr rbs re- reb ree reg rei reo rer res rgb rge rgg rgi rgo rgr rgs rib rie rig rii rio rir ris rjg rjr rob roe rog roi roj roo ror ros rrb rrg rri rrr rrs rsb rse rsg rsi rsj rso rsr rss sbb sbe sbg sbi sbj sbo sbr sbs se- seb see seg sei sej seo ser ses sgb sge sgg sgi sgo sgr sgs sib sie sig sii sij sio sir sis sjb sje sji sjj sjr sjs sob soe sog soi soj soo sor sos sr- srb sre srg sri srj sro srr srs ss- ssb sse ssg ssi ssj sso ssr sss