5041
This study was carried out to investigate the effects of selenium ( Se ) on the uptake and translocation of cadmium ( Cd ) and essential elements in paddy rice ( Oryza sativa L . , Shuangyou 998 ) .
 Chemical: selenium; Chemical: Se; Chemical: cadmium; Chemical: Cd
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: selenium; Chemical: Se; Chemical: cadmium; Chemical: Cd