List all the primary affiliations of He, Xiangjian and Chao Ma.
What are the primary affiliations of He, Xiangjian and Chao Ma?
SELECT DISTINCT ?answer WHERE { { <https://dblp.org/pid/75/2122> <https://dblp.org/rdf/schema#primaryAffiliation> ?answer } UNION { <https://dblp.org/pid/79/1552-5> <https://dblp.org/rdf/schema#primaryAffiliation> ?answer } }
<https://dblp.org/pid/75/2122> <https://dblp.org/pid/79/1552-5>