
The module can be described by the following simulation waveform:

  time  x  y  z
  0ns   0  0  1
  5ns   0  0  1
  10ns  0  0  1
  15ns  0  0  1
  20ns  0  0  1
  25ns  1  0  0
  30ns  1  0  0
  35ns  0  1  0
  40ns  0  1  0
  45ns  1  1  1
  50ns  1  1  1
  55ns  0  0  1
  60ns  0  1  0
  65ns  0  1  0
  70ns  1  1  1
  75ns  0  1  0
  80ns  0  1  0
  85ns  0  1  0
  90ns  1  0  0

module TopModule (
  input x,
  input y,
  output z
);

