79143
The ABO blood group system was discovered in the year 1900 by Karl Landsteiner .
 person: Karl Landsteiner
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: Karl Landsteiner 
Answer:
 person: Karl Landsteiner