1525
Furthermore , N - feruloyl serotonin ( 5 ) and N - isoferuloyl serotonin ( 6 ) were converted into , two new compounds , N - feruloyl serotonin - 4 ' - O - beta - D - glucopyranoside ( 8 ) and N - isoferuloyl serotonin - 3 ' - O - beta - D - glucopyranoside ( 9 ) , respectively .
 Chemical: N - feruloyl serotonin; Chemical: N - isoferuloyl serotonin; Chemical: N - feruloyl serotonin - 4 ' - O - beta - D - glucopyranoside; Chemical: N - isoferuloyl serotonin - 3 ' - O - beta - D - glucopyranoside
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 - feruloyl serotonin; Chemical: N - isoferuloyl serotonin; Chemical: N - feruloyl serotonin - 4 ' - O - beta - D - glucopyranoside; Chemical: N - isoferuloyl serotonin - 3 ' - O - beta - D - glucopyranoside