19574
The activation of N - methyl - D - aspartate - receptors ( NMDARs ) in synapses provides plasticity and cell survival signals , whereas NMDARs residing in the neuronal membrane outside synapses trigger neurodegeneration .
 Chemical: N - methyl - D - aspartate
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: N - methyl - D - aspartate 
Answer:
 Chemical: N - methyl - D - aspartate