//predefined charges in a format of (CHARGE partical_charge atom_ID atom_name)
CHARGE	-0.417500	7	N1
CHARGE	 0.271900	8	H4
CHARGE	 0.597300	15	C5
CHARGE	-0.567900	16	O2
//charge groups in a format of (GROUP num_atom net_charge)
GROUP	10	  0.00000
//atoms in the group in a format of (ATOM atom_ID atom_name)
ATOM	7	N1
ATOM	8	H4
ATOM	9	C3
ATOM	10	H5
ATOM	11	C4
ATOM	12	H6
ATOM	13	H7
ATOM	14	H8
ATOM	15	C5
ATOM	16	O2
//definition for the second group
//GROUP ..	..
//ATOM	..	..
//ATOM	..	.. 
