{
    "ch-1" : [
        {
            "function" : "cleardigits",
            "arguments" : "cab12",
            "result" : "c"
        },
        {
            "arguments" : "xy99",
            "result" : ""
        },
        {
            "arguments" : "pa1erl",
            "result" : "perl"
        }
    ],
    "ch-2" : [
        {
            "function" : "titlecapital",
            "arguments" : "PERL IS gREAT",
            "result" : "Perl is Great"
        },
        {
            "arguments" : "THE weekly challenge",
            "result" : "The Weekly Challenge"
        },
        {
            "arguments" : "YoU ARE A stAR",
            "result" : "You Are a Star"
        }
    ]
}