5980
Histopathological effects of waterborne copper nanoparticles and copper sulphate on the organs of rainbow trout ( Oncorhynchus mykiss ) .
 Chemical: copper; Chemical: copper sulphate
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: copper; Chemical: copper sulphate