How many authors does 'C5' have?
Find the number of authors of the paper 'C5'.
SELECT ?answer WHERE { <https://dblp.org/rec/conf/slt/SuendermannLEDP08> <https://dblp.org/rdf/schema#numberOfCreators> ?answer }
<https://dblp.org/rec/conf/slt/SuendermannLEDP08>