16550
Decompression - induced crystal polymorphism in a room - temperature ionic liquid , N , N - diethyl - N - methyl - N - ( 2 - methoxyethyl ) ammonium tetrafluoroborate .
 Chemical: N , N - diethyl - N - methyl - N - ( 2 - methoxyethyl ) ammonium tetrafluoroborate
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: N , N - diethyl - N - methyl - N - ( 2 - methoxyethyl ) ammonium tetrafluoroborate