7147
They moved to Boston in May 1949 , then to nearby suburbs Somerville in July 1949 , Waltham in May 1951 , and finally West Newton in 1956 .
 location: Boston; location: Somerville; location: Waltham; location: West Newton
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:
 location: Boston; location: Somerville; location: Waltham; location: West Newton