&input_pw2bgw
   prefix = 'silicon'
   real_or_complex = 1
   wfng_flag = .true.
   wfng_file = 'wfn.real'
   wfng_kgrid = .true.
   wfng_nk1 = 10
   wfng_nk2 = 10
   wfng_nk3 = 10
   wfng_dk1 = 0.47
   wfng_dk2 = 0.37
   wfng_dk3 = 0.32
/
