Suppose I work in $4$ dimensions. I have an algebraic equation in the following form, which contains a 3 rank tensor $X ^{\alpha \lambda \mu }$ \begin{equation} X ^{\alpha \lambda \mu }\eta ^{\beta \xi }-X ^{\mu \lambda \alpha }\eta ^{\beta \xi }-X ^{\beta \lambda \mu }\eta ^{\alpha \xi }+X ^{\beta \lambda \alpha }\eta ^{\mu \xi } =0, \end{equation} where $\eta ^{\beta \xi }$ is the Minkowski metric tensor.
What 3 rank tensor $X ^{\alpha \lambda \mu }$ satisfies the above equation?