What is the {rift} for {located on terrain feature} of {Frankfurt}
What geographic crack is found in Frankford?
What geographic rift is located in Frankford?
SELECT DISTINCT ?f WHERE { ?f rdf:type ontology:rift . resource:Frankfurt_am_Main property:located_on_terrain_feature ?f }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1794> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P706> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q473935> } 
 select distinct ?obj where { wd:Q1794 wdt:P706 ?obj . ?obj wdt:P31 wd:Q473935 } 
Upper Rhine Plain