3176
Based on mild local irritation after topical application of 1 . 0 % sodium metaphosphate [ ( NaPO ( 3 ) ) 6 * H2O ] to intact skin of sensitive volunteers , a do not use concentration of 8 , 000 mg PO4 / L can be assigned .
 Chemical: sodium metaphosphate; Chemical: ( NaPO ( 3 ) ) 6 * H2O; Chemical: PO4
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: sodium metaphosphate; Chemical: ( NaPO ( 3 ) ) 6 * H2O; Chemical: PO4