75978
He supports and promotes the idea of abandonment of GNR ( genetics , nanotechnology , and robotics ) technologies , instead of going into an arms race between negative uses of the technology and defense against those negative uses ( good nano-machines patrolling and defending against Grey goo " bad " nano-machines ) .
 person: Grey
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: Grey 
Answer:
 person: Grey