Assertion: lamp's use | /r/HasProperty | required by authority
Facets:
value: as a basic safety precaution
type: PURPOSE
Source sentences:
text: The use of lights for night riding is generally recommended or required by authorities as a basic safety precaution, even in a well-lit urban context.[which?] show a correlation[clarification needed] between collisions and failure to use lights even during daytime.[improper synthesis?]