Question: An egg of Columbus or Columbus' egg, refers to a brilliant idea or discovery that seems simple or easy after the fact, the expression refers to an apocryphal story in which 1492, a Spanish-based transatlantic maritime expedition led by Christopher Columbus encountered the Americas, a continent which was previously unknown in Europe, leading to the colonization of the Americas?
{'answer': 'Spanish-based transatlantic maritime expedition led by Christopher Columbus', 'supporting_facts': [['Egg of Columbus', 1], ['Voyages of Christopher Columbus', 0]]}