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The latter are able to rapidly exchange coordinated Zn ( II ) with ( 68 ) Ga ( 3 + ) , as confirmed by mass spectrometry and ( 31 ) P NMR spectroscopy .
 Chemical: Zn ( II ); Chemical: ( 68 ) Ga ( 3 + ); Chemical: ( 31 ) P
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: Zn ( II ); Chemical: ( 68 ) Ga ( 3 + ); Chemical: ( 31 ) P