d1cg2a2    d1cg2b2    d1cg2c2    d1cg2d2 
d1cg2a2           0.0        0.0        0.0        0.0 
d1cg2b2           0.0        0.0        0.0        0.0 
d1cg2c2           0.0        0.0        0.0        0.0 
d1cg2d2           0.0        0.0        0.0        0.0