If I have the following triangles in a circle can I draw any conclusion about their similarity?

Question

I would need this for a proof.

I have a two circles intersecting at two points P and Q. We draw a segment between this two points and we draw a segment $AB$ which is perpendicular to $PQ$ and goes through P. Then we draw another segment $UV$ which goes through P and through a point $U$ in the first circle and $V$ in the second.

Can I say something about the following triangles that I drew in my image? Especially about their similarity?

I would only please need a hint, I want to solve this myself.

I thank everyone for help and am sorry for the not so good picture.

EDIT:I am looking for some similarity of UOP,AOQ,QHW and PHB. If there is any other way I can see them to find some similarity I would be thankful for a hint.

Answer 1

Hint: Angles that subtend the same arc are congruent so $\angle U \cong \angle A$ and $\angle W \cong \angle B$