14 A quadrilateral has vertices \(A , B , C\) and \(D\) with position vectors given by
$$\overrightarrow { O A } = \left[ \begin{array} { l }
3
5
1
\end{array} \right] , \overrightarrow { O B } = \left[ \begin{array} { r }
- 1
2
7
\end{array} \right] , \overrightarrow { O C } = \left[ \begin{array} { l }
0
7
6
\end{array} \right] \text { and } \overrightarrow { O D } = \left[ \begin{array} { r }
4
10
0
\end{array} \right]$$
14
- Write down the vector \(\overrightarrow { A B }\)
14
- Show that \(A B C D\) is a parallelogram, but not a rhombus.