select ?gene (count (?gene) as ?count)
where {
	graph prj:Preeclampsia {
	 	?o1 tao:denoted_by ?s1 .
	}

	graph prj:preeclampsia_genes {
	 	?o2 tao:denoted_by ?s2 .
      	?o2 a ?gene .
      	FILTER (?gene != tao:Context_entity)
	}
      
	?s1 tao:belongs_to ?a1 .
    ?s2 tao:belongs_to ?a1 .
}
GROUP BY ?gene
ORDER BY DESC(?count)