Number of distinct annotations stored in Biomodels database

Statement: 
Number of distinct annotations stored in Biomodels database
A limit of results per page $number$ (e.g., 10)
Query: 
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX sbmlrdf: <http://identifiers.org/biomodels.vocabulary#> SELECT (count (DISTINCT ?element) as ?no_distinct_annotations) WHERE { ?element ?qualifier ?annotation . ?qualifier rdfs:subPropertyOf sbmlrdf:sbmlAnnotation } limit ??number