16734
Interlayer breathing and shear modes in few - trilayer MoS2 and WSe2 .
 Chemical: MoS2; Chemical: WSe2
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: MoS2; Chemical: WSe2