-er -ey -up b-p b-u bbb bbe bbn bbp bbr bbu bby be- beb bee ben bep ber beu bey bnb bne bnn bnp bnr bnu bpb bpe bpn bpp bpr bpu bpy brb bre brn brp brr bru bry bub bue bun bup bur buu buy by- bye byn byp byr byu ebb ebe ebn ebp ebr ebu eby eeb eee een eep eer eey en- enb ene enn enp enr enu eny ep- epb epe epn epp epr epu erb ere ern erp err eru ery eu- eub eue eun eup eur eye eyn eyp eyr nbb nbe nbn nbp nbr nbu ne- neb nee nen nep ner neu ney nnb nne nnn nnp nnu npb npe npn npp npr npu nrb nre nrn nrp nrr nru nry nub nue nun nup nur nuu nuy nye nyn nyp nyu nyy p-p pbb pbe pbn pbp pbr pbu pby peb pee pen pep per peu pey pn- pnb pne pnn pnp pnr pnu pny ppb ppe ppn ppp ppr ppu prb pre prn prp prr pru pry pub pue pun pup pur puu puy py- pyb pye pyn pyr pyu rbb rbe rbn rbp rbr rbu re- reb ree ren rep rer reu rey rnb rnn rnp rnr rnu rny rpb rpe rpn rpp rpr rpu rrb rrn rrp rrr rru rub rue run rup rur ruu ruy ry- rye ryn ryr ryu ryy ubb ube ubn ubp ubr ubu uby ueb uee uen uep uer uey un- unb une unn unp unr unu uny up- upb upe upn upp upr upu ur- urb ure urn urp urr uru ury uue uun uur uuu uyu ybe ybp ybr yby yeb yee yen yep yer yey yne ynn ynp ynu yny ypu yre yrn yrp yru yue yun yup yur yuu yuy yyb yye yyu yyy