A.SBA=4i B.CBA=0.5 C.SAB=4i D.SBA=3i E.CAB=0.5
A.SBA=4i B.SAB=3i C.SAB=i D.CBA=0.5 E.CAB=0
A.SBA=i B.SAB=3i C.SAB=i D.SBA=3i E.CAB=-1