How many {deepest point} are to/by {Indian Ocean} ?
What is the deepest point of the Indian Ocean?
How many deepest point to Indian Ocean?
SELECT ( COUNT ( ?b ) AS ?z ) { ?b property:lowest_point resource:Indian_Ocean }
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/P1589> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q1239 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P1589 wd:Q1239 }
17