Assertion: sea's water level | /r/HasProperty | varied by more than 12 feet
Facets:
Source sentences:
text: From the mid-19th to late 20th century, the water level varied by more than 12 feet (3.6 m).
text: From the mid-19th to late 20th century, the water level varied by more than 12 feet (3.6 m).