16975
Then , by a dip - coating process , an ordered polyethylene glycol ( PEG ) polymer - dot array forms on the HDT - patterned gold substrate .
 Chemical: polyethylene glycol; Chemical: PEG; Chemical: HDT
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: polyethylene glycol; Chemical: PEG; Chemical: HDT