-up a-a a-b aaa aab aap aar aau aay ab- aba abb abp abr abu aby ap- apa apb app apr apu apy ar- ara arb arp arr aru ary au- aua aub aup aur ay- aya ayp ayr ayu b-p b-u baa bab bap bar bau bay bba bbb bbp bbr bbu bby bpa bpb bpp bpr bpu bpy bra brb brp brr bru bry bua bub bup bur buu buy by- bya byp byr byu p-p paa pab pap par pau pay pba pbb pbp pbr pbu pby ppa ppb ppp ppr ppu pra prb prp prr pru pry pua pub pup pur puu puy py- pya pyb pyr pyu ra- raa rab rap rar rau ray rba rbb rbp rbr rbu rpa rpb rpp rpr rpu rra rrb rrp rrr rru rua rub rup rur ruu ruy ry- rya ryr ryu ryy ua- uaa uab uap uar uau uay uba ubb ubp ubr ubu uby up- upa upb upp upr upu ur- ura urb urp urr uru ury uua uur uuu uyu yaa yab yap yar yau yay ybp ybr yby ypa ypu yra yrp yru yua yup yur yuu yuy yyb yyu yyy