11223
For example , Ca ( 2 + ) and Mg ( 2 + ) ( sulfate as counter - anion ) had an anticompetitive effect on Ni accumulation , suggesting that Ca or Mg forms a ternary complex with Ni - biotic ligand .
 Chemical: Ca ( 2 + ); Chemical: Mg ( 2 + ); Chemical: sulfate; Chemical: Ni; Chemical: Ca; Chemical: Mg; Chemical: Ni
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: Ca ( 2 + ); Chemical: Mg ( 2 + ); Chemical: sulfate; Chemical: Ni; Chemical: Ca; Chemical: Mg; Chemical: Ni