Assertion: bur oak | /r/HasProperty | dominant trees
Facets:
value: although black oak
type: OTHER
value: in northern oak savannas
type: LOCATION
Source sentences:
text: Bur oaks are the dominant trees that grace Arbor Day Farm and the hills and valleys surrounding Nebraska City.
text: The bur oak (Quercus macrocarpa) is the dominant species in northern oak savannas, although black oak (Quercus velutina), white oak (Quercus alba), and Hill's oak (Quercus ellipsoidalis)are sometimes present.