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 ) .
 Grey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Grey