Assertion: alluvial fan | /r/HasProperty | active
Facets:
Source sentences:
text: An alluvial fan is considered active when there is still a sediment source continually feeding the fan sediment.
text: An alluvial fan is considered active when there is still a sediment source continually feeding the fan sediment.
text: An alluvial fan is considered active when there is still a sediment source continually feeding the fan sediment.