In the figure, lines $p$ and $q$ are parallel, and line $t$ is a transversal. An angle formed by line $p$ and line $t$ measures $70^{\circ }$. The angle $x^{\circ }$ is in the corresponding position relative to line $q$ and line $t$. What is the value of $x$?

(Note: The figure shows two parallel lines $p$ and $q$ intersected by a transversal $t$. The angle $70^{\circ }$ is in the upper-left position relative to line $p$ and $t$. The angle $x^{\circ }$ is in the upper-left position relative to line $q$ and $t$.)