30228
For the slightly higher molecular weight tetraethylenepentamine , pentamine , and pentaethylenehexamine , hexamine , the adsorption is in the form of a monolayer at pH 3 and multilayers at pH 7 and 10 .
 Chemical: tetraethylenepentamine; Chemical: pentamine; Chemical: pentaethylenehexamine; Chemical: hexamine
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: tetraethylenepentamine; Chemical: pentamine; Chemical: pentaethylenehexamine; Chemical: hexamine