14652
In current work , MD simulation was carried out to study the dynamical structure of a special G - DNA ( with sequence d ( G ( 4 ) T ( 4 ) G ( 4 ) ) ) complexed with five K ( + ) ions .
 Chemical: K ( + )
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: K ( + )