Assertion: grassland | /r/HasProperty | invaded by rain-bearing tropical gulf air
Facets:
value: in early summer
type: TEMPORAL
value: in spring
type: TEMPORAL
Source sentences:
text: At the “break of the plains” on the eastern subhumid margin, invaded by rain-bearing tropical gulf air in spring and early summer, the grasslands consist of a dense growth of tall grasses, such as big and little bluestem and Indian grass , along with many forbs and some small berry bushes, wild roses, and stunted aspen trees.