16972
The fabrication of patterned microstructures in poly ( dimethylsiloxane ) ( PDMS ) is a prerequisite for soft lithography .
 Chemical: poly ( dimethylsiloxane ); Chemical: PDMS
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: poly ( dimethylsiloxane ); Chemical: PDMS