8874
The layer transforms a weakly performing polystyrene film into a highly wear - resistive system , ideal for high - density and low - power data storage applications .
 Chemical: polystyrene
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: polystyrene