Question: Who is the mother of the man who ruled Friuli from 874 until at least 890?
{'answer': 'Gisela', 'supporting_facts': [['Gisela, daughter of Louis the Pious', 0], ['Gisela, daughter of Louis the Pious', 1], ['Gisela, daughter of Louis the Pious', 2], ['Berengar I of Italy', 1]]}