Assertion: freshwater aquifer | /r/HasProperty | discovered under continental shelves
Facets:
value: off south africa
type: LOCATION
value: in 2013
type: TEMPORAL
value: off china
type: LOCATION
value: off north america
type: LOCATION
value: off australia
type: LOCATION
Source sentences:
text: In 2013 large freshwater aquifers were discovered under continental shelves off Australia, China, North America and South Africa.