What is {date of death} and {mother} of {{Pedro I} has {child} as {Princess Januária of Brazil}}
When did Pedro I's toddler Princess Januária of Brazil die, and who used to be her mother?
When did Pedro I's child Princess Januária of Brazil die, and who was her mother?
SELECT ?b ?v WHERE { ?t property:child resource:Princess_Januária_of_Brazil . resource:Pedro_I_of_Brazil property:child ?t . ?t property:date_of_death ?b . ?t property:mother ?v }
select distinct ?value1 ?value2 where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q939> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q261802>. ?statement <http://www.wikidata.org/entity/P580> ?value1 . ?statement <http://www.wikidata.org/entity/P2842> ?value2 } 
SELECT ?value1 ?value2 WHERE { wd:Q939 p:P40 ?s . ?s ps:P40 wd:Q261802 . ?s pq:P570 ?value1 . ?s pq:P25 ?value2 }