18207
A new diarylheptanoid , ( 5S ) - hydroxy - 1 - ( 3 , 4 - dihydroxyphenyl ) - 7 - ( 4 - hydroxyphenyl ) - hepta - 1E - en - 3 - one ( 1 ) , was isolated along with seventeen known diarylheptanoids ( 2 - 18 ) from the methanol extract of Alnus hirsuta f . sibirica leaves using bioactivity - guided fractionation .
 Chemical: diarylheptanoid; Chemical: ( 5S ) - hydroxy - 1 - ( 3 , 4 - dihydroxyphenyl ) - 7 - ( 4 - hydroxyphenyl ) - hepta - 1E - en - 3 - one; Chemical: diarylheptanoids; Chemical: methanol
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: diarylheptanoid; Chemical: ( 5S ) - hydroxy - 1 - ( 3 , 4 - dihydroxyphenyl ) - 7 - ( 4 - hydroxyphenyl ) - hepta - 1E - en - 3 - one; Chemical: diarylheptanoids; Chemical: methanol