Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Bikini Atoll Nuclear Test Site' has mentioned 'Ocean' in the following places:
Occurrence Sentence Text Source
Beginning in 2011 the resettled residents of Kili Island began to experience periods of ocean flooding during king tide.
Ocean waves have covered portions of the island at least five times from 2011 to 2015, contaminating the wells on the island.
The runway servicing the island is unusable during and after rains and ocean flooding because it becomes extremely muddy.