13378
The ultimate LC50 value was estimated at 23 . 3mgL ( - 1 ) toluene .
 Chemical: toluene
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: toluene 
Answer:
 Chemical: toluene