8551
The concentration of Se in plants cultured in 10 mg Se ( IV ) L ( - 1 ) ranged from 436 to 839 mu g Se g ( - 1 ) DM in M . spicatum , 319 to 988 mu g Se g ( - 1 ) DM in C . demersum and 310 to 661 mu g Se g ( - 1 ) DM in P . perfoliatus .
 Chemical: Se; Chemical: Se ( IV ); Chemical: Se; Chemical: Se; 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: Se; Chemical: Se ( IV ); Chemical: Se; Chemical: Se; Chemical: Se