2504
In this study , we investigated the potential of water extracts from three Hypericum sps . and some of their main phenolic compounds to prevent and repair oxidative and alkylating DNA damage in colon cells .
 Chemical: phenolic
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: phenolic