22340
Particular attention has been given to Al and heavy metals for the identification of possible raw material contaminants , their transformation into the infusion and for predicting their eventual role in the human diet during daily consumption .
 Chemical: Al
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