54889
By 1914 , experiments by physicists Ernest Rutherford , Henry Moseley , James Franck and Gustav Hertz had largely established the structure of an atom as a dense nucleus of positive charge surrounded by lower-mass electrons .
 person: Ernest Rutherford; person: Henry Moseley; person: James Franck; person: Gustav Hertz
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: Ernest Rutherford, Henry Moseley, James Franck, Gustav Hertz 
Answer:
 person: Ernest Rutherford; person: Henry Moseley; person: James Franck; person: Gustav Hertz