Assertion: ultraviolet | /r/HasProperty | efficient method
Facets:
value: for detecting such stains
type: PURPOSE
value: very
type: DEGREE
Source sentences:
text: Body fluids such as saliva , semen , vaginal fluids, urine, and perspiration give off fluorescent light when illuminated by a source of ultraviolet light, which is a very efficient method for detecting such stains in a crime scene or in objects collected from the scene, such as clothing, towels, bed sheets, or decorative items.