33630
It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy , and remains one of the 88 modern constellations .
 person: Ptolemy
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: Ptolemy 
Answer:
 person: Ptolemy