19521
Similarly , gas phase acidity parameters are Delta acidH ( o ) ( His ) = 1373 kJ mol ( - 1 ) , Delta acidS ( His ) ~ 10 J mol ( - 1 ) K ( - 1 ) and Delta acidG ( o ) ( His ) = 1343 kJ mol ( - 1 ) .
 Chemical: His; Chemical: His; Chemical: His
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: His; Chemical: His; Chemical: His