Assertion: nightingale's song | /r/HasProperty | sad
Facets:
value: depending on the mood
type: OTHER
Source sentences:
text: Hearing sad songs from the people, the nightingale sang its song to cheer them up.
text: Hearing sad songs from the people, the nightingale sang its song to cheer them up.
text: Depending on the mood or the weather, the song of the nightingale can be sad or fun.
text: He then states that poets have assumed that nightingales sing sad songs without taking the time to go out into nature and listen to the birds.