{
    "ch-1" : [
        {
            "function" : "replacewords",
            "multiarg" : true,
            "arguments" : [
                [ "cat", "bat", "rat" ],
                "the cattle was rattle by the battery"
            ],
            "result" : "the cat was rat by the bat"
        },
        {
            "multiarg" : true,
            "arguments" : [
                [ "a", "b", "c" ],
                "aab aac and cac bab"
            ],
            "result" : "a a a c b"
        },
        {
            "multiarg" : true,
            "arguments" : [
                [ "man", "bike" ],
                "the manager was hit by a biker"
            ],
            "result" : "the man was hit by a bike"
        }
    ],
    "ch-2" : [
        {
            "function" : "wordsearch",
            "multiarg" : true,
            "arguments" : [
                [
                    ["A", "B", "D", "E"],
                    ["C", "B", "C", "A"],
                    ["B", "A", "A", "D"],
                    ["D", "B", "B", "C"]
                ],
                "BDCA"
            ],
            "result" : true
        },
        {
            "multiarg" : true,
            "arguments" : [
                [
                    ["A", "A", "B", "B"],
                    ["C", "C", "B", "A"],
                    ["C", "A", "A", "A"],
                    ["B", "B", "B", "B"]
                ],
                "ABAC"
            ],
            "result" : false
        },
        {
            "multiarg" : true,
            "arguments" : [
                [
                    ["B", "A", "B", "A"],
                    ["C", "C", "C", "C"],
                    ["A", "B", "A", "B"],
                    ["B", "B", "A", "A"]
                ],
                "CCCAA"
            ],
            "result" : true
        }
    ]
}