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Because of her careful observations and documentation of the metamorphosis of the butterfly , she is considered by David Attenborough to be among the more significant contributors to the field of entomology .
 person: David Attenborough
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: David Attenborough