377763
In the United Kingdom there is a legally enforced lighting-up time , defined as from one half-hour after sunset to one half-hour before sunrise , during which all motor vehicles on unlit public roads ( but not parked ) must use their headlights .
 United Kingdom
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United Kingdom