Task: Question Generation
Input (English): Context : According to the Greek historian Herodotus (VI, 43) Artazostre was given in marriage to Mardonius, young son of the noble Gobryas, not much before he took the command of the Persian army in Thrace and Macedon (c. 493/492 BC). 
Subject : Artazostre 
Relation : spouse
Output (English): What is Artazostre's spouse's name?