13143
Twelve - day MC3T3 - E1 osteoblast cultures with added ascorbic acid ( for collagen matrix assembly ) and beta - glycerophosphate ( a source of phosphate for mineralization ) were treated with either PolyP5 or PolyP65 .
 Chemical: beta - glycerophosphate; Chemical: phosphate; Chemical: PolyP5; Chemical: PolyP65
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: beta - glycerophosphate; Chemical: phosphate; Chemical: PolyP5; Chemical: PolyP65