862
Their structures were elucidated as 5 - [ ( alpha - D - galactopyranosyloxy ) methyl ] - 1H - pyrrole - 2 - carbaldehyde ( 1 ) and 6 - [ ( alpha - D - galactopyranosyloxy ) methyl ] - 3 - pyridinol ( 2 ) by various spectroscopic means including HR - ESI - MS , IR , 1D and 2D NMR .
 Chemical: 5 - [ ( alpha - D - galactopyranosyloxy ) methyl ] - 1H - pyrrole - 2 - carbaldehyde; Chemical: 6 - [ ( alpha - D - galactopyranosyloxy ) methyl ] - 3 - pyridinol
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: 5 - [ ( alpha - D - galactopyranosyloxy ) methyl ] - 1H - pyrrole - 2 - carbaldehyde; Chemical: 6 - [ ( alpha - D - galactopyranosyloxy ) methyl ] - 3 - pyridinol