6063
All genomic actions of 1 alpha , 25 ( OH ) ( 2 ) D ( 3 ) are mediated by the transcription factor vitamin D receptor ( VDR ) that has been the subject of intense study since the 1980 ' s .
 Chemical: 1 alpha , 25 ( OH ) ( 2 ) D ( 3 ); Chemical: vitamin D
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 1 alpha , 25 ( OH ) ( 2 ) D ( 3 ); Chemical: vitamin D