Assertion: diatom's abundance | /r/CapableOf | vary along the course of the river
Facets:
Source sentences:
text: In a given river, the same diatom profiles could be determined but the relative abundance of each diatom varies along the course of the river.
text: In a given river, the same diatom profiles could be determined but the relative abundance of each diatom varies along the course of the river.