Question: Kazuhito Kosaka, is a Japanese comedian, better known by his stage names Daimaou Kosaka, and which name, used by his fictional singer-songwriter identity, and is best known for his single "PPAP (Pen-Pineapple-Apple-Pen)"?
{'answer': 'Pikotaro', 'supporting_facts': [['Daimaou Kosaka', 1], ['PPAP (Pen-Pineapple-Apple-Pen)', 0]]}