Assertion: glacier's valley | /r/HasProperty | widened
Facets:
value: often
type: TEMPORAL
value: during glaciation
type: TEMPORAL
Source sentences:
text: During glaciation, these valleys are often widened, deepened and smoothed to form a "U"-shaped glacial valley or glacial trough, as it is sometimes called.
text: During glaciation, these valleys are often widened, deepened and smoothed to form a "U"-shaped glacial valley or glacial trough, as it is sometimes called.