Assertion: tall grassland | /r/AtLocation | this condition
Facets:
value: indefinitely
type: MANNER
value: through burning
type: MANNER
value: through through
type: TEMPORAL
Source sentences:
text: Where forests have been destroyed, a tall grassland consisting of Pennisetum or Hyparrhenia develops and may be kept in this condition indefinitely through burning or through the browsing and grazing of such herbivores as elephants.