Assertion: aquifer | /r/HasProperty | 50 metres thick
Facets:
value: generally
type: DEGREE
value: across up to 200 metres thick
type: OTHER
Source sentences:
text: It is around 50 metres thick across most of its extent and up to 200 metres thick at Sale.
text: This aquifer is generally less than 50 metres thick and varies from fine sands and clay to coarse sand and gravel to limestone.