Beg to differ.
uaa = guava.
uae?
uae = suave
uai
UAI - quail
UAO
uao = muchacho
uau = luau
uea
i’ll go away now 
muleta
UEE
UEE - rupee
UEI
queen
and all together too!
UEI - pummeling
UEO?
Dangit! Didn’t notice pasunejen’s post.
Cluedo ?
or more reasonably,
successor
UEU
UEO - pueblo
UEU
UEU - unhelpful
UIA
uia = umbria
uie = united
uio?
UIO - union
UIU
uio = union
Next, UIU
I thought “umbria” was a proper noun?
I offer jubilant
UIU = curium, although it was named after a person…
Damn simulposts.
I’ll do UIU then. Unskillful.
Next UOA
double damn simulpost.
UOA - quota, then
UOE
Unload.
Now for a tough one – UOU
When post use braincells.