What is {date of birth} of {Lucian} that is {sourcing circumstances} is {circa} ?
About the birth of Lucian, what were the circumstances of it?
What were the circumstances surrounding the date of birth of Lucian?
SELECT ?p WHERE { resource:Lucian property:date_of_birth ?z . ?z property:date_of_birth ?p . ?z property:sourcing_circumstances resource:circa }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q177847> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P569> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P1480> <http://wikidata.dbpedia.org/resource/Q5727902>
} 

SELECT ?obj WHERE { wd:Q177847 p:P569 ?s . ?s ps:P569 ?obj . ?s pq:P1480 wd:Q5727902 }