Assertion: red light's wavelength | /r/CapableOf | use polychromatic polarised light
Facets:
value: to treat a skin condition
type: PURPOSE
Source sentences:
text: Light therapy—or phototherapy, classically referred to as heliotherapy—consists either of A.) exposure to daylight or some equivalent form of light as a treatment for seasonal affective disorder (SAD) or B.) exposure of the skin to specific wavelengths of light using polychromatic polarised light to treat a skin condition.