Question: These heads of powerful talking Olmec rulers were featured in what Nickelodeon show which aired from 1993 to 1995?
{'answer': 'Legends of the Hidden Temple', 'supporting_facts': [['Legends of the Hidden Temple', 0], ['Legends of the Hidden Temple', 1], ['Olmec colossal heads', 0], ['Olmec colossal heads', 5]]}