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Studies on various compounds of inorganic phosphate , as well as on organic phosphate added by post - translational phosphorylation of proteins , all demonstrate a central role for phosphate in biomineralization processes .
 Chemical: phosphate; Chemical: phosphate; Chemical: phosphate
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: phosphate; Chemical: phosphate; Chemical: phosphate