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In preeclampsia , the serum Ca and Mg were significantly lower than those in eclampsia , while Cu and Zn values were higher .
 Chemical: Ca; Chemical: Mg; Chemical: Cu; Chemical: Zn
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: Ca, Mg, Cu, Zn 
Answer:
 Chemical: Ca; Chemical: Mg; Chemical: Cu; Chemical: Zn