-er -ey b-u bbb bbd bbe bbm bbo bbr bbu bby bdb bdd bde bdm bdo bdr bdu bdy be- beb bed bee bem beo ber beu bey bmb bmd bme bmm bmo bmr bmu bob bod boe bom boo bor bou boy brb brd bre brm bro brr bru bry bub bud bue bum buo bur buu buy by- byd bye bym byo byr byu dbb dbd dbe dbm dbo dbr dbu dby ddb ddd dde ddm ddo ddr ddu ddy de- deb ded dee dem deo der deu dey dmb dmd dme dmm dmo dmr dmu dob dod doe dom doo dor dou doy drb drd dre drm dro drr dru dry dub dud due dum duo dur duy dy- dyb dyd dye dym dyo dyr dyu dyy ebb ebd ebe ebm ebo ebr ebu eby ed- edb edd ede edm edo edr edu edy eeb eed eee eem eeo eer eey em- emb emd eme emm emo emr emu eo- eob eod eoe eom eoo eor eou erb erd ere erm ero err eru ery eu- eub eud eue eur eyd eye eym eyo eyr m-o m-r mbb mbd mbe mbm mbo mbr mbu mdb mdd mde mdm mdo mdr mdu mdy meb med mee mem meo mer meu mey mmb mmd mme mmm mmo mmr mmu mob mod moe mom moo mor mou moy mrb mrd mre mrm mro mrr mru mry mub mud mue mum mur muu muy my- myb myd mye mym myo myr myu ob- obb obd obe obm obo obr obu oby odb odd ode odm odo odr odu oeb oed oee oem oeo oer oey om- omb omd ome omm omo omr omu omy oo- oob ood oom ooo oor or- orb ord ore orm oro orr oru ory ou- oud oue oum ouo our oyd oye oyo rbb rbd rbe rbm rbo rbr rbu rdb rdd rde rdm rdo rdr rdu rdy re- reb red ree rem reo rer reu rey rmb rmd rme rmm rmo rmr rob rod roe rom roo ror rou roy rrb rrd rrm rrr rru rub rud rue rum ruo rur ruu ruy ry- ryd rye rym ryo ryr ryu ryy ubb ube ubo ubr ubu uby udb udd ude udm udo udr udu ueb ued uee uem uer uey um- umb umd ume umm umo umr umu uob uod uoe uom uoo uor ur- urb urd ure urm uro urr uru ury uue uum uur uuu uyo uyu ybe ybm ybr yby yde ydo ydy yeb yed yee yem yeo yer yey yme ymm ymo yob yod yoe yom yoo yor you yoy yre yro yru yud yue yum yuo yur yuu yuy yyb yye yyu yyy