The maps provide important details about the river, and researchers can make comparisons with similar maps of previous years to analyze trends or patterns of change in the river's ecology.
(The maps; provide; important details about the river) (researchers; can make; comparisons with similar maps of previous years) Context(researchers can make,List([56, 76))):(researchers; can make to analyze; trends or patterns of change in the river's ecology)
researchers can make,List([56, 76))
The maps researchers researchers
provide can make can make to analyze
important details about the river
comparisons with similar maps of previous years
trends or patterns of change in the river's ecology