335853
Evolutionarily speaking , offspring have a greater bond to mothers than fathers ; women are universally known to be the direct caregivers in a parent-offspring relationship , whereas males are seen as material resource providers or involved only with their own reproductive success .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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