9996
The computational fluid dynamics technology was used for a three - dimensional numerical simulation of the indoor air velocity field and the HCl concentration field , and the simulation results were then compared with the on - site monitoring data to verify the correctness and feasibility .
 Chemical: HCl
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: HCl