183853
These analyses heightened interest in the existing debate about whether the Cambrian explosion represented a truly abrupt evolution of recognisable animals or was the result of a longer development , most of which was hidden by gaps in the known sets of fossils that had been found .
 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