-er -ji b-p bbb bbe bbi bbo bbp bbr be- beb bee bei beo bep ber bi- bib bie bii bij bio bip bir bji bjj bjp bjr bob boe boi boj boo bop bor bpb bpe bpi bpo bpp bpr brb bre bri brj bro brp brr ebb ebe ebi ebj ebo ebp ebr eeb eee eeo eep eer eib eie eii eij eio eip eir eji ejo ejp eo- eob eoe eoi eoo eop eor ep- epb epe epi epo epp epr erb ere eri ero erp err ibb ibe ibi ibj ibo ibp ibr ie- iee iei iej iep ier iib iie iii iij iio iip iir ijb ije iji ijo io- iob ioe ioi ioj ioo iop ior ipb ipe ipi ipo ipp ipr ir- irb ire iri irj iro irp irr j-i jbi jbj jbo jbr jeb jee jei jej jeo jep jer jib jie jii jij jio jip jir jjb jjj jjp jjr job joe joi joj joo jop jor jpb jpe jpi jpj jpo jpp jpr jrb jri jro jrp jrr o-i ob- obb obe obi obj obo obp obr oeb oee oei oeo oep oer oib oie oii oio oip oir ojb oje oji ojo oo- oob ooi ooo oop oor op- opb ope opi opj opo opp opr or- orb ore ori oro orp orr p-p pbb pbe pbi pbj pbo pbp pbr peb pee pei peo pep per pib pie pii pij pio pip pir pji pjo pjp pob poe poi poo pop por ppb ppe ppi ppj ppo ppp ppr prb pre pri pro prp prr rbb rbe rbi rbo rbp rbr re- reb ree rei reo rep rer rib rie rii rio rip rir rjp rjr rob roe roi roj roo rop ror rpb rpe rpi rpo rpp rpr rrb rri rrp rrr