Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Canadian Rocky Mountain Parks' has mentioned 'National parks' in the following places:
Occurrence Sentence Text Source
It consists of seven contiguous parks including four national parks:
In 1983 Canada nominated Banff, Jasper, Kootenay and Yoho national parks for inclusion on the UNESCO list of World Heritage Sites.
Banff, Jasper, Yoho and Kootenay National Parks collaborate on trans-boundary issues such as species-at-risk conservation, resource protection and restoration, and the provision of visitor opportunities.
Neighbouring provincial and national parks within the property work together periodically to address issues of common interest, such as park access, wildlife and wildfire management.