19411
This work is performed on the benchmark rare gas - hydrogen halide interaction ( HCl - He ) system .
 Chemical: hydrogen halide; Chemical: HCl; Chemical: He
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: hydrogen halide; Chemical: HCl; Chemical: He