315866
Since the five-week voyage of Christopher Columbus in 1492 , crossing the Atlantic , quickly and safely , between Europe and America has always been an important issue .
 person: Christopher Columbus
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: Christopher Columbus 
Answer:
 person: Christopher Columbus