-er -ey bbb bbc bbd bbe bbn bbo bbr bby bcb bcc bcd bce bcn bco bcr bcy bdb bdc bdd bde bdo bdr bdy be- beb bec bed bee ben beo ber bey bnb bnc bnd bne bnn bno bnr bob boc bod boe bon boo bor boy brb brd bre brn bro brr bry by- byc byd bye byn byo byr c-- cbb cbc cbd cbe cbn cbo cbr cby ccb ccc ccd cce ccn cco ccr cdb cdc cdd cde cdn cdo cdr cdy ce- ceb cec ced cee cen ceo cer cey cn- cnb cnc cnd cne cnn cno cnr cny co- cob coc cod coe con coo cor coy crb crc crd cre crn cro crr cry cyb cyc cyd cye cyn cyo cyr dbb dbc dbd dbe dbn dbo dbr dby dcb dcc dcd dce dcn dco dcr ddb ddc ddd dde ddn ddo ddr ddy de- deb dec ded dee den deo der dey dnb dnc dnd dne dnn dno dnr dny dob doc dod doe don doo dor doy drb drc drd dre drn dro drr dry dy- dyb dyc dyd dye dyn dyo dyr dyy ebb ebc ebd ebe ebn ebo ebr eby ec- ecb ecc ecd ece ecn eco ecr ed- edb edc edd ede edn edo edr edy eeb eec eed eee een eeo eer eey en- enb enc end ene enn eno enr eny eo- eob eoc eod eoe eon eoo eor erb erc erd ere ern ero err ery eyc eyd eye eyn eyo eyr nbb nbc nbd nbe nbn nbo nbr ncb ncc ncd nce ncn nco ncr ndb ndc ndd nde ndn ndo ndr ndy ne- neb nec ned nee nen neo ner ney nnb nnc nne nnn nno no- nob noc nod noe non noo nor noy nrb nrc nrd nre nrn nro nrr nry nyc nyd nye nyn nyo nyy ob- obb obc obd obe obn obo obr oby oc- ocb occ ocd ocn oco ocr odb odc odd ode odn odo odr oeb oec oed oee oen oeo oer oey on- onb onc ond one onn ono onr ony oo- oob ooc ood oon ooo oor or- orb orc ord ore orn oro orr ory oyd oye oyo rbb rbc rbd rbe rbn rbo rbr rcb rcc rcd rce rcn rco rcr rdb rdc rdd rde rdn rdo rdr rdy re- reb rec red ree ren reo rer rey rnb rnc rnd rnn rno rnr rny rob roc rod roe ron roo ror roy rrb rrc rrd rrn rrr ry- ryc ryd rye ryn ryo ryr ryy ybc ybe ybr yby ycc ycd yce yco ycy yde ydn ydo ydy yeb yec yed yee yen yeo yer yey ynd yne ynn yny yob yoc yod yoe yon yoo yor yoy yrc yre yrn yro yyb yyc yye yyy