-er -ey bbb bbc bbe bbm bbn bbo bbr bby bcb bcc bce bcm bcn bco bcr bcy be- beb bec bee bem ben beo ber bey bmb bmc bme bmm bmn bmo bmr bnb bnc bne bnn bno bnr bob boc boe bom bon boo bor boy brb bre brm brn bro brr bry by- byc bye bym byn byo byr c-- cbb cbc cbe cbm cbn cbo cbr cby ccb ccc cce ccm ccn cco ccr ce- ceb cec cee cem cen ceo cer cey cmb cmc cme cmm cmn cmo cmr cmy cn- cnb cnc cne cnm cnn cno cnr cny co- cob coc coe com con coo cor coy crb crc cre crm crn cro crr cry cyb cyc cye cym cyn cyo cyr ebb ebc ebe ebm ebn ebo ebr eby ec- ecb ecc ece ecm ecn eco ecr eeb eec eee eem een eeo eer eey em- emb emc eme emm emn emo emr en- enb enc ene enm enn eno enr eny eo- eob eoc eoe eom eon eoo eor erb erc ere erm ern ero err ery eyc eye eym eyn eyo eyr m-o m-r mbb mbc mbe mbm mbo mbr mc- mcb mcc mce mcm mcn mco mcr meb mec mee mem men meo mer mey mmb mmc mme mmm mmn mmo mmr mnb mnc mne mnm mnn mno mnr mob moc moe mom mon moo mor moy mrb mrc mre mrm mrn mro mrr mry my- myb myc mye mym myn myo myr nbb nbc nbe nbm nbn nbo nbr ncb ncc nce ncm ncn nco ncr ne- neb nec nee nem nen neo ner ney nmb nmc nme nmm nmn nmo nmr nnb nnc nne nnm nnn nno no- nob noc noe nom non noo nor noy nrb nrc nre nrm nrn nro nrr nry nyc nye nym nyn nyo nyy ob- obb obc obe obm obn obo obr oby oc- ocb occ ocm ocn oco ocr oeb oec oee oem oen oeo oer oey om- omb omc ome omm omn omo omr omy on- onb onc one onn ono onr ony oo- oob ooc oom oon ooo oor or- orb orc ore orm orn oro orr ory oye oyo rbb rbc rbe rbm rbn rbo rbr rcb rcc rce rcm rcn rco rcr re- reb rec ree rem ren reo rer rey rmb rmc rme rmm rmn rmo rmr rnb rnc rnm rnn rno rnr rny rob roc roe rom ron roo ror roy rrb rrc rrm rrn rrr ry- ryc rye rym ryn ryo ryr ryy ybc ybe ybm ybr yby ycc yce yco ycy yeb yec yee yem yen yeo yer yey ymc yme ymm ymo yne ynn yny yob yoc yoe yom yon yoo yor yoy yrc yre yrn yro yyb yyc yye yyy