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Selective I ( 2 ) - imidazoline receptor ligands induce neuroprotection through various molecular mechanisms including blockade of N - methyl - D - aspartate ( NMDA ) receptors .
 Chemical: imidazoline; Chemical: N - methyl - D - aspartate; Chemical: NMDA
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: imidazoline; Chemical: N - methyl - D - aspartate; Chemical: NMDA