-er -ey -up a-a a-b aaa aab aae aap aar aau aay ab- aba abb abe abp abr abu aby aea aeb aee aep aer aeu aey ap- apa apb ape app apr apu apy ar- ara arb are arp arr aru ary au- aua aub aue aup aur ay- aya aye ayp ayr ayu b-p b-u baa bab bae bap bar bau bay bba bbb bbe bbp bbr bbu bby be- bea beb bee bep ber beu bey bpa bpb bpe bpp bpr bpu bpy bra brb bre brp brr bru bry bua bub bue bup bur buu buy by- bya bye byp byr byu eaa eab eae eap ear eau eba ebb ebe ebp ebr ebu eby eea eeb eee eep eer eey ep- epa epb epe epp epr epu era erb ere erp err eru ery eu- eua eub eue eup eur eya eye eyp eyr p-p paa pab pae pap par pau pay pba pbb pbe pbp pbr pbu pby pea peb pee pep per peu pey ppa ppb ppe ppp ppr ppu pra prb pre prp prr pru pry pua pub pue pup pur puu puy py- pya pyb pye pyr pyu ra- raa rab rae rap rar rau ray rba rbb rbe rbp rbr rbu re- rea reb ree rep rer reu rey rpa rpb rpe rpp rpr rpu rra rrb rrp rrr rru rua rub rue rup rur ruu ruy ry- rya rye ryr ryu ryy ua- uaa uab uae uap uar uau uay uba ubb ube ubp ubr ubu uby uea ueb uee uep uer uey up- upa upb upe upp upr upu ur- ura urb ure urp urr uru ury uua uue uur uuu uyu yaa yab yae yap yar yau yay ybe ybp ybr yby yea yeb yee yep yer yey ypa ypu yra yre yrp yru yua yue yup yur yuu yuy yyb yye yyu yyy