d1w1we_    d1w1wf_    d1w1wg_    d1w1wh_ 
d1w1we_           0.0        0.0        0.0        0.0 
d1w1wf_           0.0        0.0        0.0        0.0 
d1w1wg_           0.0        0.0        0.0        0.0 
d1w1wh_           0.0        0.0        0.0        0.0