d1hf8a1    d1hg5a1    d1hg2a1    d1hfaa1 
d1hf8a1           0.0        0.0        0.0        0.0 
d1hg5a1           0.0        0.0        0.0        0.0 
d1hg2a1           0.0        0.0        0.0        0.0 
d1hfaa1           0.0        0.0        0.0        0.0