1268
For ( GtK + 2H ) ( + * ) , these excited states were characterized by time - dependent density functional theory as A - C states that had large components of Rydberg - like 3s molecular orbitals at the N - terminal and lysine ammonium groups that are conducive to hydrogen atom loss .
 Chemical: GtK; Chemical: 2H; Chemical: N; Chemical: lysine; Chemical: ammonium; Chemical: hydrogen
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: GtK; Chemical: 2H; Chemical: N; Chemical: lysine; Chemical: ammonium; Chemical: hydrogen