24797
Structural insights obtained from the EGFR / 2a complex suggested that an extension from the meta - position on the phenyl group ( ring - 5 ) would improve interactions with the DFG motif .
 Chemical: phenyl
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: phenyl