.PS
log_init

# Usual defs...
qrt=dimen_/4;
hlf=dimen_/2;
dim=dimen_;

T1:"A " rjust_; 
line right_ 12*L_unit

G1:AND_gate with .In1 at Here
line from G1.In2 left_ 12*L_unit
right_; "B " rjust_
line from G1.Out right_ 3*L_unit then down 3*L_unit then right_ 3*L_unit

G2:OR_gate with .In1 at Here
line right_ 3*L_unit; " Z" ljust_
line from G2.In2 left_ 3*L_unit then down_ 3*L_unit then left_ 3*L_unit
right_

G3:AND_gate with .Out at Here
line from G3.In2 left_ 12*L_unit 
right_; "C " rjust_
line from G3.In1 left_ 2*L_unit; right_

G4:NOT_gate with .Out at Here
line from G4.In1 left_ 2*L_unit then up_ 6*L_unit; dot

move to G2.Out then down_ 6*L_unit

"\tiny Hazard" ljust_ 
.PE