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In a 1950 paper , James Rainwater of Columbia University suggested a variant of the drop model of the nucleus that could explain a non-spherical charge distribution .
 person: James Rainwater; organization: Columbia University
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: James Rainwater; organization: Columbia University