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We show that if a countable group $G$ is the free product of infinite abeliangroups, then for every free, probability-measure-preserving (p.m.p.) action of$G$, its orbit equivalence class is weakly dense in the space of p.m.p. actionsof $G$. This extends Lewis Bowen's result for free groups.

Weak density of orbit equivalence classes and free products of infinite abelian groups