How many {employer} are for {Hans Krebs} ?
Give me the name of the employer of Hans Krebs.
Who is the employer of the {Hans Krebs} ?
SELECT ( COUNT ( ?y ) AS ?h ) { resource:Hans_Krebs property:employer ?y }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q57191> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P108> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q57191 wdt:P108 ?obj }
5