-er -ey bbb bbc bbe bbm bbn bbr bby bcb bcc bce bcm bcn bcr bcy be- beb bec bee bem ben ber bey bmb bmc bme bmm bmn bmr bnb bnc bne bnn bnr brb bre brm brn brr bry by- byc bye bym byn byr c-- cbb cbc cbe cbm cbn cbr cby ccb ccc cce ccm ccn ccr ce- ceb cec cee cem cen cer cey cmb cmc cme cmm cmn cmr cmy cn- cnb cnc cne cnm cnn cnr cny crb crc cre crm crn crr cry cyb cyc cye cym cyn cyr ebb ebc ebe ebm ebn ebr eby ec- ecb ecc ece ecm ecn ecr eeb eec eee eem een eer eey em- emb emc eme emm emn emr en- enb enc ene enm enn enr eny erb erc ere erm ern err ery eyc eye eym eyn eyr m-r mbb mbc mbe mbm mbr mc- mcb mcc mce mcm mcn mcr meb mec mee mem men mer mey mmb mmc mme mmm mmn mmr mnb mnc mne mnm mnn mnr mrb mrc mre mrm mrn mrr mry my- myb myc mye mym myn myr nbb nbc nbe nbm nbn nbr ncb ncc nce ncm ncn ncr ne- neb nec nee nem nen ner ney nmb nmc nme nmm nmn nmr nnb nnc nne nnm nnn nrb nrc nre nrm nrn nrr nry nyc nye nym nyn nyy rbb rbc rbe rbm rbn rbr rcb rcc rce rcm rcn rcr re- reb rec ree rem ren rer rey rmb rmc rme rmm rmn rmr rnb rnc rnm rnn rnr rny rrb rrc rrm rrn rrr ry- ryc rye rym ryn ryr ryy ybc ybe ybm ybr yby ycc yce ycy yeb yec yee yem yen yer yey ymc yme ymm yne ynn yny yrc yre yrn yyb yyc yye yyy