-up a-a a-b aaa aab aap aas aau aay ab- aba abb abp abs abu aby ap- apa apb app aps apu apy as- asa asb asp ass asu asy au- aua aub aup aus ay- aya ayp ays ayu b-p b-u baa bab bap bas bau bay bba bbb bbp bbs bbu bby bpa bpb bpp bps bpu bpy bsa bsb bsp bss bsu bsy bua bub bup bus buu buy by- bya byp bys byu p-p paa pab pap pas pau pay pba pbb pbp pbs pbu pby ppa ppb ppp pps ppu ps- psa psb psp pss psu psy pua pub pup pus puu puy py- pya pyb pys pyu saa sab sap sas sau say sba sbb sbp sbs sbu sby spa spb spp sps spu spy ss- ssa ssb ssp sss ssu sua sub sup sus suu suy sy- sya syb syp sys syu ua- uaa uab uap uas uau uay uba ubb ubp ubs ubu uby up- upa upb upp ups upu usa usb usp uss usu uua uus uuu uys uyu yaa yab yap yas yau yay ybp ybs yby ypa yps ypu ysa ysb ysp yss ysu ysy yua yup yus yuu yuy yyb yys yyu yyy