16470
Gas phase dissociative electron attachment ( DEA ) measurements with methyl - dialanine , C ( 7 ) H ( 14 ) N ( 2 ) O ( 3 ) , are performed in a crossed electron - molecular beam experiment at high energy resolution ( ~ 120 meV ) .
 Chemical: methyl - dialanine; Chemical: C ( 7 ) H ( 14 ) N ( 2 ) O ( 3 )
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: methyl - dialanine, C ( 7 ) H ( 14 ) N ( 2 ) O ( 3 ) 
Answer:
 Chemical: methyl - dialanine; Chemical: C ( 7 ) H ( 14 ) N ( 2 ) O ( 3 )