what is the {for work} for {Joni Mitchell} has {award received} as {Grammy Award for Best Traditional Pop Vocal Album} ?
Joni Mitchell won the Grammy for Best Traditional Pop for which vocal album for?
What was the album that Joni Mitchell won the Grammy for Best Traditional Pop Vocal Album for?
SELECT ?q WHERE { resource:Joni_Mitchell property:award_received ?r . ?r property:for_work ?q . ?r property:award_received resource:Grammy_Award_for_Best_Traditional_Pop_Vocal_Album }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q205721> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P166> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q280481> .
?statement <http://www.wikidata.org/entity/P1686> ?value. 
} 

SELECT ?value WHERE { wd:Q205721 p:P166 ?s . ?s ps:P166 wd:Q280481 . ?s pq:P1686 ?value}