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The catalytic reactivity of Co ( II ) ( Ch ) was much higher than that of a cobalt porphyrin complex ( Co ( II ) ( OEP ) , OEP ( 2 - ) = octaethylporphyrin dianion ) , which is a typical porphyrinoid complex .
 Chemical: Co ( II ) ( Ch ); Chemical: cobalt porphyrin; Chemical: Co ( II ) ( OEP ); Chemical: OEP ( 2 - ); Chemical: octaethylporphyrin
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: Co ( II ) ( Ch ); Chemical: cobalt porphyrin; Chemical: Co ( II ) ( OEP ); Chemical: OEP ( 2 - ); Chemical: octaethylporphyrin