NIMCET 2021 Question Paper with solutions

Read the following information carefully and then answer the following question:
I. $\mathit{P}\mathrm{\Psi }\mathit{Q}$ means $\mathit{P}$ is mother of $\mathit{Q}$
II. $\mathit{P}\in \mathit{Q}$ means $\mathit{P}$ is sister of $\mathit{Q}$
III. $\mathit{P}\mathrm{\$}\mathit{Q}$ means $\mathit{P}$ is father of $\mathit{Q}$
iv.P # $\mathit{Q}$ means $\mathit{P}$ is brother of $\mathit{Q}$
If $\mathit{K}\mathrm{\Psi }\mathit{L}\in \mathit{M}\mathrm{\#}\mathit{N}$, then how $\mathit{K}$ is related with $\mathit{N}?$