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Artists such as Isamu Noguchi , David Smith , Alexander Calder , Jean Tinguely , Richard Lippold , George Rickey , Louise Bourgeois , and Louise Nevelson came to characterize the look of modern sculpture .
 Isamu Noguchi, David Smith, Alexander Calder, Jean Tinguely, Richard Lippold, George Rickey, Louise Bourgeois, Louise Nevelson
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:
 Isamu Noguchi, David Smith, Alexander Calder, Jean Tinguely, Richard Lippold, George Rickey, Louise Bourgeois, Louise Nevelson