{
    "ch-1" : [
        {
            "function" : "commoncharacters",
            "arguments" : [
                "bella", "label", "roller"
            ],
            "result" : [
                "e", "l", "l"
            ]
        },
        {
            "arguments" : [
                "cool", "lock", "cook"
            ],
            "result" : [
                "c", "o"
            ]
        },
        {
            "arguments" : [
                "hello", "world", "pole"
            ],
            "result" : [
                "l", "o"
            ]
        },
        {
            "arguments" : [
                "abc", "def", "ghi"
            ],
            "result" : []
        },
        {
            "arguments" : [
                "aab", "aac", "aaa"
            ],
            "result" : [
                "a", "a"
            ]
        }
    ],
    "ch-2" : [
        {
            "function" : "findwinner",
            "arguments" : [
                [0,0],[2,0],[1,1],[2,1],[2,2]
            ],
            "result" : "A"
        },
        {
            "arguments" : [
                [0,0],[1,1],[0,1],[0,2],[1,0],[2,0]
            ],
            "result" : "B"
        },
        {
            "arguments" : [
                [0,0],[1,1],[2,0],[1,0],[1,2],[2,1],[0,1],[0,2],[2,2]
            ],
            "result" : "Draw"
        },
        {
            "arguments" : [
                [0,0],[1,1]
            ],
            "result" : "Pending"
        },
        {
            "arguments" : [
                [1,1],[0,0],[2,2],[0,1],[1,0],[0,2]
            ],
            "result" : "B"
        }
    ]
}