\left( \begin{array}{c} m_1 \\ m_2 \\ m_3 \\ m_4 \end{array}\right) = \alpha \left( \begin{array}{c} 0 \\ 1 \\ 2 \\ 0 \end{array}\right) + \beta \left( \begin{array}{c} 2 \\ 1 \\ 0 \\ 2 \end{array}\right)