what is the {instance of} for {Ming dynasty} has {inception} as {1368-1-1} ?
What happened in 1368 that paved way to the establishment of the Ming Dinasty?
What was the instance  in 1368 that was the inception of the Ming Dynasty.
SELECT ?r WHERE { ?t property:inception ?h . ?t rdf:type ?r . resource:Ming_dynasty property:inception ?t . FILTER ( CONTAINS ( YEAR ( ?h ) , '1368' ) ) }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q9903> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P571> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <1368-1-1> .
?statement <http://www.wikidata.org/entity/P31> ?value. 
} 

SELECT ?value WHERE { wd:Q9903 p:P571 ?s . ?s ps:P571 ?x filter(contains(YEAR(?x),'1368')) . ?s pq:P31 ?value}