5944
( 18 - Crown - 6 ) - 2 , 3 , 11 , 12 - tetracarboxylic acid is a useful chiral NMR solvating agent for isoxazoline - fused beta - amino acid derivatives .
 Chemical: ( 18 - Crown - 6 ) - 2 , 3 , 11 , 12 - tetracarboxylic acid; Chemical: isoxazoline; Chemical: beta - amino acid
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: ( 18 - Crown - 6 ) - 2 , 3 , 11 , 12 - tetracarboxylic acid, isoxazoline, beta - amino acid 
Answer:
 Chemical: ( 18 - Crown - 6 ) - 2 , 3 , 11 , 12 - tetracarboxylic acid; Chemical: isoxazoline; Chemical: beta - amino acid