what is the {start time} for {Confederate States of America} has {contains administrative territorial entity} as {Tennessee} ?
In what year did Tennessee join the Confederate States of America?
When did Tennessee become part of the Confederate States of America?
SELECT ?h WHERE { ?n property:contains_administrative_territorial_entity resource:Tennessee . ?n property:start_time ?h . resource:Confederate_States_of_America property:contains_administrative_territorial_entity ?n }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q81931> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P150> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q1509> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q81931 p:P150 ?s . ?s ps:P150 wd:Q1509 . ?s pq:P580 ?value}