2491
Among them are glycine transporter - 1 ( GlyT1 ) inhibitors such as SSR103800 , which indirectly enhance NMDA receptor function by increasing the glycine ( a co - agonist for the NMDA receptor ) levels in the synapse .
 Chemical: glycine; Chemical: SSR103800; Chemical: NMDA; Chemical: glycine; Chemical: NMDA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: glycine, SSR103800, NMDA, glycine, NMDA 
Answer:
 Chemical: glycine; Chemical: SSR103800; Chemical: NMDA; Chemical: glycine; Chemical: NMDA