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It refers to a postulated future period of over a billion years where policy and governance structures , as well as science , technology and ethics , coordinate to achieve the social virtues of ecological sustainability and environmental integrity as influentially propounded by eco-economists such as EF Schumacher ( with his concept of ‘ small ( and local ) is beautiful ’ ) and Kenneth Boulding ( with his idea of ‘ Spaceship Earth ’ as a closed economy requiring recycling of resources ) , as well as Herman Daly with his notion of ‘ steady state ’ economies drawing upon the laws of thermodynamics and the tendency of the universe to greater entropy ( dispersal of energy ) .
 person: EF Schumacher; person: Kenneth Boulding; person: Herman Daly
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: EF Schumacher, Kenneth Boulding, Herman Daly 
Answer:
 person: EF Schumacher; person: Kenneth Boulding; person: Herman Daly