Assertion: national park's visitor | /r/HasAspect | negative impact
Facets:
value: on natural resources
type: TRANSITIVE-OBJECT
value: on noise
type: LOCATION
value: on air
type: LOCATION
Source sentences:
text: Important concerns for the park include overcrowding, visitors having a negative impact on natural resources, air and noise pollution, displacing wildlife and putting human and healthy safety first and foremost.