How many {regulates (molecular biology)} are to/by {gene expression} ?
In what way does gene expression regulate molecular biology?
How does gene expression regulate molecular biology?
SELECT ( COUNT ( ?l ) AS ?x ) { ?l property:regulates_(molecular_biology) resource:gene_expression }
SELECT (COUNT(?sub) AS ?subs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?sub .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P128> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q26972 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P128 wd:Q26972 }
3