How many different affiliations do the authors of 'The applications of interval-valued fuzzy numbers and interval-distribution numbers' have?
Count the different affiliations of the authors of 'The applications of interval-valued fuzzy numbers and interval-distribution numbers'.
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/journals/fss/WangL98> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/journals/fss/WangL98>