29065
To our surprise , the dihalogen bonding observed in the hexachloro - and hexabromobenzenes plays a rather minor role in energy stabilization , because they are energetically comparable with the other binding motifs .
 dihalogen, hexachloro - and hexabromobenzenes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 dihalogen, hexachloro - and hexabromobenzenes