Split Key Value Pairs multiple times using jinja template

Jinja splits

{% if article.productvariations %}
  {% for category_groups in article.productvariations.split('|') %}
		{% for category in category_groups.split('=') %}
			{% if loop.first %}
			<h1>{{ category }}</h1>
			{% else %}
			<ul>
			{% for list in category.split(',') %}
			{% set itemvalues = list.split(':') %}
			<li>{{ itemvalues[0] }} costs {{itemvalues [1]}}
			{% endfor %}
			</ul>
			{% endif %}
		{% endfor %}
	{% endfor %}
{% endif %}

Thanks to talha131 for help on this solution
https://gist.github.com/talha131/6642646#file-hyperking-prob-sol-1