d6pfka_    d6pfkb_    d6pfkc_    d6pfkd_ 
d6pfka_           0.0        0.0        0.0       10.0 
d6pfkb_           0.0        0.0        0.0        4.0 
d6pfkc_           0.0        0.0        0.0        4.0 
d6pfkd_          10.0        4.0        4.0        0.0