a-a a-b aaa aab aah aak aar aau aav ab- aba abb abh abk abr abu abv aha ahb ahh ahk ahr ahu ahv aka akb akh akk akr aku akv ar- ara arb arh ark arr aru arv au- aua aub auh auk aur auv av- ava avb avh avk avr avu b-u baa bab bah bak bar bau bav bba bbb bbh bbk bbr bbu bha bhb bhh bhk bhr bhu bhv bka bkb bkk bkr bkv bra brb brh brk brr bru brv bua bub buh buk bur buu bva bvb bvh bvk bvr bvu bvv haa hab hah hak har hau hav hba hbb hbh hbk hbr hbu hbv hha hhb hhh hhk hhr hhu hhv hka hkb hkh hkk hkr hku hr- hra hrb hrh hrk hrr hru hrv hua hub huh huk hur huu huv hv- hva hvb hvk hvr hvv ka- kaa kab kah kak kar kau kav kba kbb kbh kbk kbr kbu kha khh khk khr khu khv kkb kkh kkk kkr kku kkv kra krk krr kru krv kub kuh kuk kur kuu kva kvb kvh kvk kvr kvv ra- raa rab rah rak rar rau rav rba rbb rbh rbk rbr rbu rh- rha rhb rhh rhr rhu rhv rkb rkk rku rkv rra rrb rrh rrk rrr rru rua rub ruh ruk rur ruu ruv rva rvb rvh rvr rvu rvv ua- uaa uab uah uak uar uau uav uba ubb ubh ubk ubr ubu ubv uha uhb uhh uhr uhu uhv uka ukb ukk ukr uku ur- ura urb urk urr uru uua uur uuu uva uvb uvu uvv v-a vaa vab vah vak var vau vav vba vbh vbk vbr vbv vh- vha vhb vka vkb vra vrb vrh vrk vrr vru vuk vur vuv vva vvb vvr vvv