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Alongside V. Gordon Childe and especially Grahame Clark , he envisaged an archaeology that saw the necessary goal of archaeology as the reconstruction of prehistoric lifeways with a focus on cultures as " functioning entities embracing social , political , and ideological as well as economic components that the archaeologist must try to study holistically from the inside " .
 V. Gordon Childe, Grahame Clark
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 V. Gordon Childe, Grahame Clark