1648
In contrast to the unified character of a European patent application , a granted European patent has , in effect , no unitary character , except for the centralized opposition procedure ( which can be initiated within 9 months from grant , by somebody else than the patent proprietor ) , and the centralized limitation and revocation procedures ( which can only be instituted by the patent proprietor ) .
 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