-er -ey -up b-p b-u bbb bbe bbi bbp bbr bbt bbu bby be- beb bee bei bep ber bet beu bey bi- bib bie bii bip bir bit biu biy bpb bpe bpi bpp bpr bpt bpu bpy brb bre bri brp brr brt bru bry btb bte bti btp btr btt btu bty bub bue bui bup bur but buu buy by- bye byi byp byr byt byu ebb ebe ebi ebp ebr ebt ebu eby eeb eee eep eer eet eey eib eie eii eip eir eit eiu ep- epb epe epi epp epr ept epu erb ere eri erp err ert eru ery etb ete eti etp etr ett etu ety eu- eub eue eui eup eur eut eye eyp eyr eyt ibb ibe ibi ibp ibr ibt ibu iby ie- iee iei iep ier iet iey iib iie iii iip iir iit iiu ipb ipe ipi ipp ipr ipt ipu ipy ir- irb ire iri irp irr irt iru iry itb ite iti itp itt itu ity iu- iub iue iui iup iur iut iye iyr iyt iyy p-p pbb pbe pbi pbp pbr pbt pbu pby peb pee pei pep per pet peu pey pib pie pii pip pir pit piu ppb ppe ppi ppp ppr ppt ppu prb pre pri prp prr prt pru pry pt- ptb pte pti ptp ptr ptt ptu pty pub pue pui pup pur put puu puy py- pyb pye pyr pyt pyu rbb rbe rbi rbp rbr rbt rbu re- reb ree rei rep rer ret reu rey rib rie rii rip rir rit riy rpb rpe rpi rpp rpr rpt rpu rrb rri rrp rrr rrt rru rtb rte rti rtp rtr rtt rtu rty rub rue rui rup rur rut ruu ruy ry- rye ryr ryu ryy tbb tbe tbi tbp tbr tbt tbu te- teb tee tei tep ter tet teu tey tib tie tii tip tir tit tiu tiy tpb tpe tpi tpp tpr tpt tpu trb tre tri trp trr trt tru try ttb tte tti ttp ttr ttt ttu tty tub tue tui tup tur tut tuu tuy tye typ tyr tyt ubb ube ubi ubp ubr ubt ubu uby ueb uee uei uep uer uet uey uib uie uii uip uir uit uiu up- upb upe upi upp upr upt upu ur- urb ure uri urp urr urt uru ury utb ute uti utp utr utt utu uty uue uur uut uuu uyi uyu ybe ybi ybp ybr yby yeb yee yei yep yer yet yey yie yii yip yir yit ypu yre yrp yrt yru yte ytp ytr ytt ytu yue yui yup yur yut yuu yuy yyb yye yyt yyu yyy