Assertion: caravan | /r/HasProperty | formed into circle
Facets:
value: at night
type: TEMPORAL
value: often
type: TEMPORAL
Source sentences:
text: At night, wagon trains were often formed into a circle or square for shelter from wind or weather, and to corral the emigrants' animals in the center to prevent them from running away or being stolen by Native Americans.
text: At night, wagon trains were often formed into a circle or square for shelter from wind or weather, and to corral the emigrants' animals in the center to prevent them from running away or being stolen by Native Americans.