Math for Computer Science

Suppose the domain of the propositional function P(x,y) consists of pairs x and y, where x = 1, 2, or 3, and y = 1, 2, or 3. Write out the following proposition using disjunctions and conjunctions only:

∃xP(x,y)

I don't even know where to start... (x ∧ y) ∨ (y ∧ x) is an ok answer? I don't even know how that would make sense anyway though, so any help would be greatly appreciated.

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