How many different affiliations do the authors of 'Developing an Assessment (Tool) for Touch Screen Devices' have?
Count the different affiliations of the authors of 'Developing an Assessment (Tool) for Touch Screen Devices'.
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/conf/aaate/Danial-SaadC17> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/conf/aaate/Danial-SaadC17>