5047
The presence of Cd could also reverse these decreases especially at the highest treatment levels for both Se and Cd , also suggesting an element regulation mechanism responsible for the detoxification of high dosages of Se .
 Chemical: Cd; Chemical: Se; Chemical: Cd; Chemical: Se
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: Cd; Chemical: Se; Chemical: Cd; Chemical: Se