-------------------------1-------------------------
<span petal:repeat="num array_of_nums">
  num=[$num]
  <span petal:repeat="chr array_of_chars">
    + num=[$num] chr=[$chr]
    <span petal:repeat="stf array_of_stuff">
      num=[$num] chr=[$chr] stf=[$stf]
    </span>
    - num=[$num] chr=[$chr]
  </span>
</span>
-------------------------2-------------------------
<span petal:repeat="num array_of_nums2">
  num=[$num]
  <span petal:repeat="chr array_of_chars2">
    + num=[$num] chr=[$chr]
    <span petal:repeat="stf array_of_stuff">
      num=[$num] chr=[$chr] stf=[$stf]
    </span>
    - num=[$num] chr=[$chr]
  </span>
</span>
-------------------------3-------------------------
<span petal:repeat="num array_of_nums3">
  num=[$num]
  <span petal:repeat="chr array_of_chars3">
    + num=[$num] chr=[$chr]
    <span petal:repeat="stf array_of_stuff">
      num=[$num] chr=[$chr] stf=[$stf]
    </span>
    - num=[$num] chr=[$chr]
  </span>
</span>