How many {source of income} are to/by {subsidy} ?
What was the amount of the subsidy?
How much money was the subsidy?
SELECT ( COUNT ( ?n ) AS ?o ) { ?n property:source_of_income resource:subsidy }
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/P2770> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q193219 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P2770 wd:Q193219 }
7