Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Monte San Giorgio' has mentioned 'Well' in the following places:
Occurrence Sentence Text Source
Monte San Giorgio became a UNESCO World Heritage Sites in 2003, because it "is the single best known record of marine life in the Middle Triassic period, and records important remains of life on land as well.
Criterion (viii): Monte San Giorgio is the single best known record of marine life in the Triassic period, and records important remains of life on land as well.
The long history of study of the property and the disciplined management of the resource have created a well documented and catalogued body of specimens of exceptional quality, and are the basis for a rich associated geological literature.