Report the year in which Wang, Zhiqi published their last paper.
When was the last paper by Zhiqi Wang published?
SELECT DISTINCT MAX(xsd:integer(?answer)) AS ?answer WHERE { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/19/4423> . ?x <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/pid/19/4423>