Question: Who was the father of John of Castile, Lord of Valencia de Campos?
SPARQL query: SELECT DISTINCT ?d WHERE { ?d property:P40 resource:Q926544 }
Verbalized SPARQL query: SELECT DISTINCT ?d WHERE { ?d property:child resource:John_of_Castile,_Lord_of_Valencia_de_Campos }
Answer: Alfonso X of Castile