Assertion: river estuary | /r/HasProperty | formed following devensian
Facets:
value: between 6000
type: TEMPORAL
value: years ago
type: TEMPORAL
value: between about 15,000
type: TEMPORAL
Source sentences:
text: Many drowned river valley estuaries were formed between about 15,000 and 6000 years ago following the end of the Wisconsin (or 'Devensian')
text: Many drowned river valley estuaries were formed between about 15,000 and 6000 years ago following the end of the Wisconsin (or 'Devensian')