-up a-a a-b aaa aab aak aap aar aau ab- aba abb abk abp abr abu aka akb akk akp akr aku ap- apa apb apk app apr apu ar- ara arb ark arp arr aru au- aua aub auk aup aur b-p b-u baa bab bak bap bar bau bba bbb bbk bbp bbr bbu bka bkb bkk bkp bkr bpa bpb bpp bpr bpu bra brb brk brp brr bru bua bub buk bup bur buu ka- kaa kab kak kap kar kau kba kbb kbk kbp kbr kbu kkb kkk kkp kkr kku kpa kpk kpp kpr kpu kra krk krp krr kru kub kuk kup kur kuu p-p paa pab pak pap par pau pba pbb pbk pbp pbr pbu pka pkb pkp pkr pku ppa ppb ppk ppp ppr ppu pra prb prk prp prr pru pua pub puk pup pur puu ra- raa rab rak rap rar rau rba rbb rbk rbp rbr rbu rkb rkk rkp rku rpa rpb rpk rpp rpr rpu rra rrb rrk rrp rrr rru rua rub ruk rup rur ruu ua- uaa uab uak uap uar uau uba ubb ubk ubp ubr ubu uka ukb ukk ukp ukr uku up- upa upb upk upp upr upu ur- ura urb urk urp urr uru uua uur uuu