Task: Question Generation
Input (English): Context : Mamochisane (fl. 1850s) was a Makololo Queen who ruled over many people, but especially the Lozi in Barotseland, today's Western Zambia, and was a wife of King Sipopa Lutangu. 
Answer : Sipopa Lutangu
Output (English): What is Mamochisane's spouse's name?