Question: How many battles have involved commanders of 1st Free French Division?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
SELECT DISTINCT COUNT(?uri) WHERE { <http://dbpedia.org/resource/1st_Free_French_Division> prop:notableCommanders ?x . ?x prop:battles ?uri . }