-er -ey bbb bbc bbd bbe bbg bbo bbr bby bcb bcc bcd bce bcg bco bcr bcy bdb bdc bdd bde bdg bdo bdr bdy be- beb bec bed bee beg beo ber bey bgb bgc bgd bge bgg bgo bgr bob boc bod boe bog boo bor boy brb brd bre brg bro brr bry by- byc byd bye byg byo byr c-- cbb cbc cbd cbe cbg cbo cbr cby ccb ccc ccd cce ccg cco ccr cdb cdc cdd cde cdg cdo cdr cdy ce- ceb cec ced cee ceg ceo cer cey cgb cgc cgd cge cgg cgo cgr cgy co- cob coc cod coe cog coo cor coy crb crc crd cre crg cro crr cry cyb cyc cyd cye cyg cyo cyr dbb dbc dbd dbe dbg dbo dbr dby dcb dcc dcd dce dcg dco dcr ddb ddc ddd dde ddg ddo ddr ddy de- deb dec ded dee deg deo der dey dgc dgd dge dgg dgr dob doc dod doe dog doo dor doy drb drc drd dre drg dro drr dry dy- dyb dyc dyd dye dyo dyr dyy ebb ebc ebd ebe ebg ebo ebr eby ec- ecb ecc ecd ece ecg eco ecr ed- edb edc edd ede edg edo edr edy eeb eec eed eee eeg eeo eer eey egb egc egd ege egg ego egr egy eo- eob eoc eod eoe eog eoo eor erb erc erd ere erg ero err ery eyc eyd eye eyo eyr g-d gbc gbd gbe gbg gbo gbr gby gcb gcc gcd gce gcg gco gcr gdb gdc gdd gde gdo gdr ge- geb gec ged gee geg geo ger gey ggb ggc ggd ggg ggo ggr gob goc god goe gog goo gor goy grb grc grd gre grg gro grr gry gy- gyb gyd gye gyo gyr ob- obb obc obd obe obg obo obr oby oc- ocb occ ocd ocg oco ocr odb odc odd ode odg odo odr oeb oec oed oee oeg oeo oer oey ogc ogd oge ogg ogo ogy oo- oob ooc ood oog ooo oor or- orb orc ord ore org oro orr ory oyd oye oyo rbb rbc rbd rbe rbg rbo rbr rcb rcc rcd rce rcg rco rcr rdb rdc rdd rde rdg rdo rdr rdy re- reb rec red ree reg reo rer rey rgb rgc rgd rge rgg rgo rgr rob roc rod roe rog roo ror roy rrb rrc rrd rrg rrr ry- ryc ryd rye ryg ryo ryr ryy ybc ybe ybg ybr yby ycc ycd yce yco ycy yde ydg ydo ydy yeb yec yed yee yeg yeo yer yey ygc ygo yob yoc yod yoe yog yoo yor yoy yrc yre yrg yro yyb yyc yye yyg yyy