Assertion: plant's foot | /r/HasProperty | 7.2 m
Facets:
Source sentences:
text: Although generally flat, some 3,500,000 cubic yards (2,700,000 m3) of soil and rock had to be excavated from areas up to 46 feet (14 m) high, and six major areas had to be filled in, to a maximum depth of 23.5 feet (7.2 m).