10134
In 1666 , Newton observed that the spectrum of colours exiting a prism in the position of minimum deviation is oblong , even when the light ray entering the prism is circular , which is to say , the prism refracts different colours by different angles .
 person: Newton
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Newton 
Answer:
 person: Newton