Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Ha Long Bay' has mentioned 'Region' in the following places:
Occurrence Sentence | Text Source |
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end of the Devonian Period Due to tectonic activity, the Ha Long area and the entire north-east region were raised from the depths 340,000,000xe2x80x93240,000,000 BC later Carboniferous and Permian periods The formation of the limestone layer more than 1,000 m thick. | WIKI |