what is the {start time} for {John Stuart, 3rd Earl of Bute} has {position held} as {Secretary of State for the Northern Department} ?
John Stuart, 3rd Earl of Bute served as Secretary of State for the Northern Department beginning when?
When did John Stuart, 3rd Earl of Bute begin serving as Secretary of State for the Northern Department?
SELECT ?g WHERE { resource:John_Stuart,_3rd_Earl_of_Bute property:position_held ?y . ?y property:position_held resource:Secretary_of_State_for_the_Northern_Department . ?y property:start_time ?g }
select distinct ?value  where {
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?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P39> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q3954358> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q294651 p:P39 ?s . ?s ps:P39 wd:Q3954358 . ?s pq:P580 ?value}