7695
Recently , we have reported the cloning of the germ cell - specific , nuclear orphan receptor germ cell nuclear factor ( GCNF ) / RTR .
 germ cell nuclear factor, GCNF, RTR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 germ cell nuclear factor, GCNF, RTR