-er -ey b-p bbb bbd bbe bbi bbp bbr bby bdb bdd bde bdi bdp bdr bdy be- beb bed bee bei bep ber bey bi- bib bid bie bii bip bir biy bpb bpd bpe bpi bpp bpr bpy brb brd bre bri brp brr bry by- byd bye byi byp byr dbb dbd dbe dbi dbp dbr dby ddb ddd dde ddi ddp ddr ddy de- deb ded dee dei dep der dey di- dib did die dii dip dir diy dpb dpd dpe dpi dpp dpr drb drd dre dri drp drr dry dy- dyb dyd dye dyp dyr dyy ebb ebd ebe ebi ebp ebr eby ed- edb edd ede edi edp edr edy eeb eed eee eep eer eey eib eid eie eii eip eir ep- epb epd epe epi epp epr erb erd ere eri erp err ery eyd eye eyp eyr i-d ibb ibd ibe ibi ibp ibr iby idb idd ide idi idp idr idy ie- ied iee iei iep ier iey iib iid iie iii iip iir ipb ipd ipe ipi ipp ipr ipy ir- irb ird ire iri irp irr iry iye iyr iyy p-p pbb pbd pbe pbi pbp pbr pby pdb pdd pde pdi pdp pdr peb ped pee pei pep per pey pib pid pie pii pip pir ppb ppd ppe ppi ppp ppr prb prd pre pri prp prr pry py- pyb pyd pye pyr rbb rbd rbe rbi rbp rbr rdb rdd rde rdi rdp rdr rdy re- reb red ree rei rep rer rey rib rid rie rii rip rir riy rpb rpd rpe rpi rpp rpr rrb rrd rri rrp rrr ry- ryd rye ryr ryy ybe ybi ybp ybr yby yde ydy yeb yed yee yei yep yer yey yid yie yii yip yir ypd yre yrp yyb yye yyy