8988
The genomic structure and chromosomal location of the human TR2 orphan receptor , a member of the steroid receptor superfamily .
 human TR2 orphan receptor, steroid receptor superfamily
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 human TR2 orphan receptor, steroid receptor superfamily