11596
The positive potential , labeled a sigma hole , is on the extension of the covalent bond to the halogen , which accounts for the characteristic near - linearity of halogen bonding .
 Chemical: halogen; Chemical: halogen
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: halogen; Chemical: halogen