Assertion: arboretum's acre | /r/HasProperty | 0.49 km2
Facets:
Source sentences:
text: Arnold's gift was combined with 120 acres (0.49 km2) of land that had been donated to Harvard University in 1842.
text: Arnold's gift was combined with 120 acres (0.49 km2) of land that had been donated to Harvard University in 1842.