Assertion: ocean's area | /r/HasProperty | mapped for navigation purposes
Facets:
Source sentences:
text: Sometimes, this term refers to either any relatively shallow place in a stream, lake, sea, or other body of water; a rocky area on the sea floor within an area mapped for navigation purposes; a growth of vegetation on the bottom of a deep lake that occurs at any depth; and as a verb for the process of proceeding from a greater to a lesser depth of water.