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The ideal viewing conditions created by reflected north light from more than of skylights are especially evident in the galleries devoted to the paintings of On Kawara , Agnes Martin , Blinky Palermo , and Robert Ryman .
 person: On Kawara; person: Agnes Martin; person: Blinky Palermo; person: Robert Ryman
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: On Kawara; person: Agnes Martin; person: Blinky Palermo; person: Robert Ryman