29879
Lycopene possibly alleviates oxidative stress ; however , biomarker research for oxidative stress needs be more consistent with the outcomes in lycopene intervention trials for disease prevention .
 Lycopene, lycopene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Lycopene, lycopene