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Tumor - induced osteomalacia ( TIO ) is a rare disorder of phosphate wasting due to fibroblast growth factor - 23 ( FGF23 ) - secreting tumors that are often difficult to locate .
 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