Assertion: nightjar's song | /r/HasProperty | audible
Facets:
value: easily
type: MANNER
value: at 200 m
type: LOCATION
Source sentences:
text: The song is easily audible at 200 m (660 ft), and can be heard at 600 m (2,000 ft) in good conditions; it can be confused with the very similar sound of the European mole cricket.