16249
When 50 ppb and higher concentrations of Al ion were added to the phosphate buffer solution , the formation of white particles containing Al , P and O was detected .
 Chemical: Al; Chemical: phosphate; Chemical: Al; Chemical: P; Chemical: O
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: Al; Chemical: phosphate; Chemical: Al; Chemical: P; Chemical: O