In the diagram below, line \(l\) is parallel to line \(m\). A bent path runs from point \(A\) on \(l\), down to a point \(Z\) between the two lines, and then on to point \(B\) on \(m\). The angle between \(l\) and \(AZ\) at \(A\) is \(38^\circ\), and the angle between \(m\) and \(ZB\) at \(B\) is \(47^\circ\), as marked.



(The diagram is a schematic sketch and is not drawn to scale.)

Calculate the size of the marked angle \(x\), which is the size of angle \(AZB\).