4453
By 1909 , actresses such as Florence Lawrence and Mary Pickford were already widely recognized , although the public remained unaware of their names .
 person: Florence Lawrence; person: Mary Pickford
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Florence Lawrence, Mary Pickford 
Answer:
 person: Florence Lawrence; person: Mary Pickford