-er -ey -up b-p b-u bbb bbe bbp bbr bbt bbu bby be- beb bee bep ber bet beu bey bpb bpe bpp bpr bpt bpu bpy brb bre brp brr brt bru bry btb bte btp btr btt btu bty bub bue bup bur but buu buy by- bye byp byr byt byu ebb ebe ebp ebr ebt ebu eby eeb eee eep eer eet eey ep- epb epe epp epr ept epu erb ere erp err ert eru ery etb ete etp etr ett etu ety eu- eub eue eup eur eut eye eyp eyr eyt p-p pbb pbe pbp pbr pbt pbu pby peb pee pep per pet peu pey ppb ppe ppp ppr ppt ppu prb pre prp prr prt pru pry pt- ptb pte ptp ptr ptt ptu pty pub pue pup pur put puu puy py- pyb pye pyr pyt pyu rbb rbe rbp rbr rbt rbu re- reb ree rep rer ret reu rey rpb rpe rpp rpr rpt rpu rrb rrp rrr rrt rru rtb rte rtp rtr rtt rtu rty rub rue rup rur rut ruu ruy ry- rye ryr ryu ryy tbb tbe tbp tbr tbt tbu te- teb tee tep ter tet teu tey tpb tpe tpp tpr tpt tpu trb tre trp trr trt tru try ttb tte ttp ttr ttt ttu tty tub tue tup tur tut tuu tuy tye typ tyr tyt ubb ube ubp ubr ubt ubu uby ueb uee uep uer uet uey up- upb upe upp upr upt upu ur- urb ure urp urr urt uru ury utb ute utp utr utt utu uty uue uur uut uuu uyu ybe ybp ybr yby yeb yee yep yer yet yey ypu yre yrp yrt yru yte ytp ytr ytt ytu yue yup yur yut yuu yuy yyb yye yyt yyu yyy