1328
Results revealed that these two essential oils were highly effective against R . dominica at the dose of 50 micro L on Petri dish of 8 . 5 cm of diameter .
 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