a-a a-b aaa aab aao aar aau aaw aay ab- aba abb abo abr abu abw aby aoa aob aoo aor aou aow ar- ara arb aro arr aru arw ary au- aua aub auo aur auw aw- awa awb awo awr awu aww awy ay- aya ayo ayr ayu ayw b-u baa bab bao bar bau baw bay bba bbb bbo bbr bbu bbw bby boa bob boo bor bou bow boy bra brb bro brr bru brw bry bua bub buo bur buu buw buy bwa bwb bwo bwr bwu bwy by- bya byo byr byu oaa oab oao oar oau oaw ob- oba obb obo obr obu obw oby oo- ooa oob ooo oor oow or- ora orb oro orr oru ory ou- oua ouo our owa owb owo owu oww oya oyo ra- raa rab rao rar rau raw ray rba rbb rbo rbr rbu rbw roa rob roo ror rou row roy rra rrb rrr rru rua rub ruo rur ruu ruy rwa rwb rwr rwu rwy ry- rya ryo ryr ryu ryy ua- uaa uab uao uar uau uaw uay uba ubb ubo ubr ubu ubw uby uoa uob uoo uor uow ur- ura urb uro urr uru urw ury uua uur uuu uwa uwb uwr uww uyo uyu waa wab wao war wau waw way wba wbb wbo wbr wbw woa wob woo wor wou wow woy wr- wra wro wrr wru wrw wry wua wub wuo wur wwa wwo wwu www wy- wya wyo wyr yaa yab yao yar yau yaw yay ybr yby yob yoo yor you yow yoy yra yro yru yua yuo yur yuu yuy yyb yyu yyy