27675
Unraveling the Reaction Mechanisms Governing Methanol - to - Olefins Catalysis by Theory and Experiment .
 Chemical: Methanol; Chemical: Olefins
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: Methanol; Chemical: Olefins