59615
According to some researchers , multituberculate " decline " is shaped by sharp extinction events , most notably after the Tiffanian , where a sudden drop in diversity occurs .
 location: Tiffanian
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: Tiffanian 
Answer:
 location: Tiffanian