1579
We tested 14 referenced chemical compounds classified as strong ( seven ) , weak ( four ) or non - ( three ) irritants in acute irritant contact dermatitis .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None