How many different affiliations do the authors of 'A Tool to Support Speech and Non-Speech Audio Feedback Generation in Audio Interfaces' have?
Count the different affiliations of the authors of 'A Tool to Support Speech and Non-Speech Audio Feedback Generation in Audio Interfaces'.
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/conf/uist/Stifelman95> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/conf/uist/Stifelman95>