Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Tubbataha Reefs Natural Park' has mentioned 'Atoll' in the following places:
Occurrence Sentence Text Source
The marine and bird sanctuary consists of two huge atolls (named the North Atoll and South Atoll) and the smaller Jessie Beazley Reef covering a total area of 97,030 hectares (239,800 acres; 374.6xc2xa0sqxc2xa0mi).
In December 1993, the UNESCO declared the Tubbataha Reefs National Park as a World Heritage Site as a unique example of an atoll reef with a very high density of marine species; the North Islet serving as a nesting site for birds and marine turtles.
Being a true atoll structure, it is believed that the atolls of Tubbataha were formed thousands of years ago as fringing reefs and volcanic islands.
At present, the marine park rangers are housed in a styrofoam-reinforced concrete structure on the Southeast Islet on Tubbatha's North Atoll.
The islands are uninhabited except for the rotating 10 xe2x80x93 12 park rangers at the Ranger's Station located at the southernmost tip of the North Atoll.
The property comprises two atolls (North and South Atoll) and an emergent coral cay, Jessie Beazley Reef.