Assertion: firefly's glow | /r/HasProperty | detectable
Facets:
value: hardly
type: DEGREE
value: so faintly
type: DEGREE
value: to a human eye
type: TRANSITIVE-OBJECT
Source sentences:
text: Out West, it’s the adult females that glow, but only while they’re on the ground, and very faintly—so faintly their glow is hardly detectable even to a human eye fully adapted to the dark.