SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/property/fields> <http://dbpedia.org/resource/Chinese_poetry> . ?x <http://dbpedia.org/property/fields> ?uri }
Count the number of fileds of the scientist whose one of the interest is Chinese poetry?
SELECT DISTINCT COUNT ( ?i ) WHERE { ?h property:fields ?i . ?h property:fields resource:Chinese_poetry }
8
There are [8] fields of the scientists whose one field is Chinese poetry.
There are [8] fields of scholars whose only field of activity is Chinese poetry.