How many {signatory} are for {U.S. Declaration of Independence} ?
How many people were signatories on the United States' Declaration of Independence?
How many signatories are there for the {U.S. Declaration of Independence} ?
SELECT ( COUNT ( ?o ) AS ?j ) { resource:United_States_Declaration_of_Independence property:signatory ?o }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q127912> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1891> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q127912 wdt:P1891 ?obj }
55