Question: When was Charlemagne's child Rotrude born and who was the mother?
Paraphrase: What is the birth date of Charlemagne's child Rotrude and was her mom.
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q3044 p:P40 ?s . ?s ps:P40 wd:Q269691 . ?s pq:P570 ?value1 . ?s pq:P25 ?value2 }