Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Sangay National Park' has mentioned 'World Heritage' in the following places:
Occurrence Sentence Text Source
The park has been listed as a UNESCO World Heritage Site since 1983.
In 1992 the park was extended to the south, increasing its area by 245,800 ha, although this extension was not included as part of the World Heritage property.
15,651 ha of park were excluded in May 2004, but the area inscribed as World Heritage was not reduced.
Today, the Park covers an area of 502,105 ha of which 271,925 ha is considered as World Heritage.
The park was seriously affected by the building of the road, which now separates the World Heritage site from the southern extension of the park.