Task: Question Answering
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. 
Question : What is Mamochisane's spouse's name?
Output (English): Sipopa Lutangu