19599
Cobalt chloride speciation , mechanisms of cytotoxicity on human pulmonary cells , and synergistic toxicity with zinc .
 Chemical: Cobalt chloride; Chemical: zinc
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: Cobalt chloride; Chemical: zinc