-er -ey bbb bbd bbe bbf bbi bbo bbr bby bdb bdd bde bdf bdi bdo bdr bdy be- beb bed bee bef bei beo ber bey bfb bfd bfe bff bfi bfo bfr bfy bi- bib bid bie bif bii bio bir biy bob bod boe bof boi boo bor boy brb brd bre brf bri bro brr bry by- byd bye byf byi byo byr dbb dbd dbe dbf dbi dbo dbr dby ddb ddd dde ddf ddi ddo ddr ddy de- deb ded dee def dei deo der dey dfb dfd dfe dff dfi dfo dfr di- dib did die dif dii dio dir diy dob dod doe dof doi doo dor doy drb drd dre dri dro drr dry dy- dyb dyd dye dyo dyr dyy ebb ebd ebe ebf ebi ebo ebr eby ed- edb edd ede edf edi edo edr edy eeb eed eee eef eeo eer eey ef- efb efd efe eff efi efo efr eib eid eie eif eii eio eir eo- eob eod eoe eof eoi eoo eor erb erd ere erf eri ero err ery eyd eye eyo eyr fbb fbd fbe fbf fbi fbo fbr fdb fdd fde fdf fdi fdo fdr feb fed fee fef fei feo fer fey ffd ffe fff ffi ffo ffr ffy fib fid fie fif fii fir fob foe fof foi foo for foy frb frd fre frf fri fro frr fry fy- fyb fye fyi fyo i-d i-f ibb ibd ibe ibf ibi ibo ibr iby idb idd ide idf idi ido idr idy ie- ied iee ief iei ier iey ifb ifd ife iff ifi ifo ifr ify iib iid iie iif iii iio iir io- iob iod ioe iof ioi ioo ior ir- irb ird ire irf iri iro irr iry iye iyo iyr iyy o-i ob- obb obd obe obf obi obo obr oby odb odd ode odf odi odo odr oeb oed oee oef oei oeo oer oey of- ofb ofd ofe off ofi ofo ofr oib oid oie oif oii oio oir oo- oob ood oof ooi ooo oor or- orb ord ore orf ori oro orr ory oyd oye oyi oyo rbb rbd rbe rbf rbi rbo rbr rdb rdd rde rdf rdi rdo rdr rdy re- reb red ree ref rei reo rer rey rfb rfd rfe rff rfi rfo rfr rib rid rie rif rii rio rir riy rob rod roe rof roi roo ror roy rrb rrd rrf rri rrr ry- ryd rye ryf ryo ryr ryy ybe ybf ybi ybr yby yde ydo ydy yeb yed yee yef yei yeo yer yey yfd yfe yff yfr yid yie yif yii yio yir yob yod yoe yof yoi yoo yor yoy yre yrf yro yyb yye yyf yyy