As shown in the figure, which two straight lines are corner one and corner two, corner three and corner four cut by which one? What angles are they?

As shown in the figure, which two straight lines are corner one and corner two, corner three and corner four cut by which one? What angles are they?

In Figure 1, angle 1 and angle 2 are formed by two straight lines DC and ab cut by dB. They are both acute angles;
In Figure 1, angle 3 and angle 4 are formed by two straight lines AD and BC cut by dB. They are both acute angles;
In Figure 2, angle 1 and angle 2 are formed by two straight lines DC and ab cut by CB. Angle 1 is an acute angle and angle 2 is an obtuse angle;
In Figure 2, angle 3 and angle 4 are formed by two straight lines AD and BC cut by AE