Assertion: river | /r/CapableOf | begin more several sources
Facets:
value: more often
type: DEGREE
value: at a source
type: MANNER
Source sentences:
text: A river begins at a source (or more often several sources), follows a path called a course, and ends at a mouth or mouths.
text: A river will begin at a source, or several sources, such as melting ice masses, glaciers, underground streams, or even from rain and snow in high altitudes.[v] Rivers follow a path that ends at the mouth.
text: A river begins at a source (or more often several sources), follows a path called a course, and ends at a mouth or mouths.