Triangle $JKL$ is a right triangle with the right angle at vertex $K$. A line segment $\overline{MN}$ intersects the hypotenuse $\overline{JL}$ at point $M$ and side $\overline{KL}$ at point $N$, such that $\overline{MN}$ is parallel to $\overline{JK}$. If the measure of angle $KJL$ is $52^{\circ }$, what is the measure, in degrees, of angle $JMN$?