Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Tubbataha Reefs Natural Park' has mentioned 'United Nations' in the following places:

Occurrence Sentence	Text Source
It was declared a World Heritage Site by the United Nations Educational, Scientific, and Cultural Organization (UNESCO) in December 1993 and falls under the protective management of the Department of National Defense (DND) of the Philippines.	WIKI