What is {cause of} of {has proximate cause} of {marsh} ?
What is the cause that has the proximate cause of marsh?
Which is the cause that has the proximate cause of marsh?
SELECT ?o WHERE { resource:marsh property:has_immediate_cause ?e . ?e property:has_effect ?o }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q30198> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1478>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1542> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q30198 wdt:P1478 ?X . ?X wdt:P1542 ?answer}