people = [
    {
        "name":"John",
        "age":30,
        "cars": ["Ford", "BMW", "Fiat", "Seat"]
    },
    {
        "name":"Rosa",
        "age":32,
        "cars": ["Mercedes", "BMW", "Citroen"]
    },
    {
        "name": "Mary",
        "age": 25,
        "cars": ["Citroen", "Jaguar"]
    }
]