87719
A concerted effort to contain the city 's sewage by constructing massive sewer systems on the north and south river embankments followed , under the supervision of engineer Joseph Bazalgette .
 person: Joseph Bazalgette
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: Joseph Bazalgette 
Answer:
 person: Joseph Bazalgette