Assertion: nightjar's song | /r/HasProperty | continuous
Facets:
Source sentences:
text: Indeed, when two blackcaps are singing against each other, the alternating songs seem continuous, and the strength of the voice and the extreme beauty of their notes arrest the ear at once, while, being so unlike the song of either blackbird or thrush, which are heard as a rule only from tops of trees, the music is at once called the nightingale’s.