5987
Overall the data showed that pathology from CuSO ( 4 ) and Cu - NPs were of similar types , but there were some material - type effects in the severity or incidence of injuries with Cu - NPs causing more injury in the intestine , liver and brain than the equivalent concentration of CuSO ( 4 ) by the end of the experiment , but in the gill and muscle CuSO ( 4 ) caused more pathology .
 Chemical: CuSO ( 4 ); Chemical: Cu; Chemical: Cu; Chemical: CuSO ( 4 ); Chemical: CuSO ( 4 )
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: CuSO ( 4 ); Chemical: Cu; Chemical: Cu; Chemical: CuSO ( 4 ); Chemical: CuSO ( 4 )