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This issue , especially with respect to the pesticide DDT , played an important role in focusing public attention on ecology and pollution issues during the 1960 s when Rachel Carson published her landmark book " Silent Spring " .
 person: Rachel Carson
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: Rachel Carson