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According to anthropologist Tim Ingold , animism shares similarities to totemism but differs in its focus on individual spirit beings which help to perpetuate life , whereas totemism more typically holds that there is a primary source , such as the land itself or the ancestors , who provide the basis to life .
 Tim Ingold
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tim Ingold