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In the seventh century , Isidore of Seville argued in his " Etymologiae " that astronomy described the movements of the heavens , while astrology had two parts : one was scientific , describing the movements of the sun , the moon and the stars , while the other , making predictions , was theologically erroneous .
 person: Isidore of Seville
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: Isidore of Seville