Assertion: alluvial fan | /r/AtLocation | the base of mountain ranges
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Alluvial fans are often found at the base of mountain ranges, at the base of the gorge between two adjacent moluntains.
text: Alluvial fans are often found at the base of mountain ranges, at the base of the gorge between two adjacent moluntains.