6844
GC - olfactometry analysis of the hydrolysates of ripe ' Hayward ' and ' Hort16A ' revealed the presence of 2 - phenylethanol , beta - damascenone , vanillin and 2 , 5 - dimethyl - 4 - hydroxy - 3 ( 2H ) - furanone ( DMHF ) .
 Chemical: 2 - phenylethanol; Chemical: beta - damascenone; Chemical: vanillin; Chemical: 2 , 5 - dimethyl - 4 - hydroxy - 3 ( 2H ) - furanone; Chemical: DMHF
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: 2 - phenylethanol; Chemical: beta - damascenone; Chemical: vanillin; Chemical: 2 , 5 - dimethyl - 4 - hydroxy - 3 ( 2H ) - furanone; Chemical: DMHF