9445
Along with Herbert Spencer , he was one of the first people to explain the existence and quality of different parts of a society by reference to what function they served in maintaining the quotidian ( i.e. by how they make society " work " ) .
 person: Herbert Spencer
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: Herbert Spencer