18732
Human milk oligosaccharides contain a large variety of oligosaccharides , of which lacto - N - biose I ( Gal - beta 1 , 3 - GlcNAc ; LNB ) predominates as a major core structure .
 Chemical: lacto - N - biose I; Chemical: Gal - beta 1 , 3 - GlcNAc; Chemical: LNB
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: lacto - N - biose I; Chemical: Gal - beta 1 , 3 - GlcNAc; Chemical: LNB