what is the {quantity} for {piña colada} has {material used} as {white rum} ?
How much pina colada is needed for white rum?
How much piña colada is used to make white rum?
SELECT ?v WHERE { ?p property:made_from_material resource:white_rum . resource:Piña_Colada property:made_from_material ?p . ?p property:quantity ?v }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q745886> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P186> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q26869768> .
?statement <http://www.wikidata.org/entity/P1114> ?value. 
} 

SELECT ?value WHERE { wd:Q745886 p:P186 ?s . ?s ps:P186 wd:Q26869768 . ?s pq:P1114 ?value}