72583
Another explanation is provided by the genetic kinship theory of William D. Hamilton : if a gene causes an individual to help other individuals that carry copies of that gene , then the " gene " has a net benefit even with the sacrifice of a few individuals .
 person: William D. Hamilton
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: William D. Hamilton 
Answer:
 person: William D. Hamilton