192504
Some scientists doubt that the impact was the sole cause , and others debate whether the Chicxulub impactor was one of several that may have struck the Earth at around the same time .
 location: Chicxulub
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: Chicxulub 
Answer:
 location: Chicxulub