3335
Maleate induced cell damage and reactive oxygen species ( ROS ) production in LLC - PK1 cells in culture .
 Chemical: Maleate; Chemical: oxygen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Maleate; Chemical: oxygen