\left[\begin{array}{c} 1 \\ 0 \\ 0 \\ -1 \end{array}\right]+ \left[\begin{array}{c} -1 \\ 0 \\ -3 \\ 1 \end{array}\right] t+ \left[\begin{array}{c} -2 \\ 1 \\ 0 \\ 0 \end{array}\right] u