97989
This was further revised to 50 km/h ( 31 mph ) in the 1990s , then 45 km/h ( 28 mph ) in the late 2000s to fall in line with unified European Union licensing regulations .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None