10668
Human A - 172 ( glioblastoma ) , SK - N - SH ( neuroblastoma ) and CCF - STTG1 ( astrocytoma ) cells were assessed after exposure to different concentrations ( 0 . 5 - 500 mu M ) of copper sulfate ( CuSO4 ) or copper ( II ) oxide ( CuO ) .
 Chemical: copper sulfate; Chemical: CuSO4; Chemical: copper ( II ) oxide; Chemical: CuO
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: copper sulfate, CuSO4, copper ( II ) oxide, CuO 
Answer:
 Chemical: copper sulfate; Chemical: CuSO4; Chemical: copper ( II ) oxide; Chemical: CuO