[Contributed discussion to:] Sally Paganin, Amy H. Herring, Andrew F. Olshan, David B. Dunson, Centered partition processes: Informative priors for clustering

We would like to congratulate the authors for their work, which represents a relevant contribution to the Bayesian cluster analysis framework. Prior elicitation is a critical issue and currently most people rely on the exchangeability assumption. To the best of our knowledge, this work is one of the first attempts to include concrete available prior information on the partition, and we hope it will serve as a stepping stone motivating further explorations of the topic.