17574
In conclusion , the tested essential oil of L . gracilis leaves , which has thymol as its major constituent , possesses significant in vitro and in vivo antitumor activity .
 Chemical: thymol
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: thymol