[
    {
        "n": 3,
        "names": [
            "cba",
            "cdc",
            "cde"
        ]
    },
    {
        "n": 5,
        "names": [
            "apple",
            "banana",
            "cherry",
            "date",
            "elder"
        ]
    },
    {
        "n": 3,
        "names": [
            "abc",
            "abd",
            "abe"
        ]
    },
    {
        "n": 7,
        "names": [
            "car",
            "care",
            "careful",
            "carefully",
            "becarefuldontforgetsomething",
            "otherwiseyouwillbehacked",
            "goodluck"
        ]
    }
]