[
    {
        "n": 8,
        "r": 5,
        "edges": [
            [
                5,
                4
            ],
            [
                5,
                6
            ],
            [
                4,
                3
            ],
            [
                4,
                7
            ],
            [
                6,
                2
            ],
            [
                6,
                8
            ],
            [
                3,
                1
            ]
        ]
    },
    {
        "n": 15,
        "r": 8,
        "edges": [
            [
                8,
                7
            ],
            [
                8,
                9
            ],
            [
                7,
                6
            ],
            [
                7,
                5
            ],
            [
                9,
                10
            ],
            [
                9,
                11
            ],
            [
                10,
                12
            ],
            [
                10,
                13
            ],
            [
                11,
                14
            ],
            [
                11,
                15
            ]
        ]
    },
    {
        "n": 50,
        "r": 25,
        "edges": [
            [
                25,
                24
            ],
            [
                25,
                26
            ],
            [
                24,
                23
            ],
            [
                24,
                22
            ],
            [
                26,
                27
            ],
            [
                26,
                28
            ],
            [
                23,
                29
            ],
            [
                23,
                30
            ],
            [
                22,
                31
            ],
            [
                22,
                32
            ],
            [
                27,
                33
            ],
            [
                27,
                34
            ],
            [
                28,
                35
            ],
            [
                28,
                36
            ],
            [
                29,
                37
            ],
            [
                29,
                38
            ],
            [
                30,
                39
            ],
            [
                30,
                40
            ],
            [
                31,
                41
            ],
            [
                31,
                42
            ],
            [
                32,
                43
            ],
            [
                32,
                44
            ],
            [
                33,
                45
            ],
            [
                33,
                46
            ],
            [
                34,
                47
            ],
            [
                34,
                48
            ],
            [
                35,
                49
            ],
            [
                35,
                50
            ],
            [
                36,
                1
            ],
            [
                36,
                2
            ],
            [
                37,
                3
            ],
            [
                37,
                4
            ],
            [
                38,
                5
            ],
            [
                38,
                6
            ],
            [
                39,
                7
            ],
            [
                39,
                8
            ],
            [
                40,
                9
            ],
            [
                40,
                10
            ],
            [
                41,
                11
            ],
            [
                41,
                12
            ],
            [
                42,
                13
            ],
            [
                42,
                14
            ],
            [
                43,
                15
            ],
            [
                43,
                16
            ],
            [
                44,
                17
            ],
            [
                44,
                18
            ],
            [
                45,
                19
            ],
            [
                45,
                20
            ],
            [
                46,
                21
            ],
            [
                46,
                22
            ]
        ]
    },
    {
        "n": 6,
        "r": 4,
        "edges": [
            [
                1,
                4
            ],
            [
                4,
                2
            ],
            [
                5,
                3
            ],
            [
                6,
                3
            ],
            [
                2,
                3
            ]
        ]
    }
]