Do I count as a URM? (mixed)

Tbh guys, I’m a pretty weird ethnic melting pot.

My dad is white, and my Mom is a 1/2 Chinese and 1/2 pacific islander

So on my common app, I selected all three of those. Being TRI-racial, how do colleges count that on their diversity stats? If I were to get into a school, would they count it as Pacific Islander? All three? Do I have an advantage?

I need some clarity here, my family and I have been discussing this for weeks