1537
The speculation that continents might have ' drifted ' was first put forward by Abraham Ortelius in 1596 .
 person: Abraham Ortelius
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: Abraham Ortelius 
Answer:
 person: Abraham Ortelius