  end {
    a = [1,2,3,4,5,6,7];
    m = {"a": 1, "b": 2};
    s = "abcdefg";

    emit {
      "a0x": a[0:],
      "a1x": a[1:],
      "a5x": a[5:],
      "a7x": a[7:],
      "a9x": a[9:],
    };

    emit {
      "m1x": m[1:],
    };

    emit {
      "s0x": s[0:],
      "s1x": s[1:],
      "s5x": s[5:],
      "s7x": s[7:],
      "s9x": s[9:],
    };
  }

