13409
The finding that hMSCs are a both a producer and target of 1 alpha , 25 ( OH ) ( 2 ) D suggests a potential autocrine / paracrine role of vitamin D metabolism in osteoblast differentiation .
 Chemical: 1 alpha , 25 ( OH ) ( 2 ) D; 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; Chemical: vitamin D