Assertion: wetland | /r/HasProperty | unhealthful
Facets:
value: in the past
type: TEMPORAL
value: generally
type: DEGREE
Source sentences:
text: In the past, wetlands were generally considered unproductive or undesirable lands-smelly and unhealthful, a breeding ground for mosquitoes and other pests-and many were filled in to create farmland or to develop land for housing and industrial use.