5955
In addition Eudemus attributed to him the discovery that a circle is bisected by its diameter , that the base angles of an isosceles triangle are equal and that vertical angles are equal .
 person: Eudemus
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: Eudemus