The figure below is a relational database schema for a Library database. Map the relational schema in the figure into an ER schema. This is part of a process known as reverse engineering, where a conceptual schema is created for an existing implemented database. State any assumptions you make.

BOOK \begin{tabular}{|l|l|l|} \hline Book_id & Title & Publisher_name \\ \hline \end{tabular} M44 BOOK_AUTHORS \begin{tabular}{|l|l|} \hline Book_id & Author_name \\ \hline \end{tabular} PUBLISHER \begin{tabular}{|c|c|c|} \hline Name & Address & Phone \\ \hline 4 \end{tabular} BOOK_COPIES \begin{tabular}{|l|l|l|} \hline Book_id & Branch_id & No_of_copies \\ \hline \end{tabular} BOOK_LOANS \begin{tabular}{|l|l|l|l|l|} \hline Book_id & Branch_id & Card_no & Date_out & Due_date \\ \hline \end{tabular} LIBRARY_BRANCH \begin{tabular}{|l|l|l|} \hline Branch_id & Branch_name & Address \\ \hline \end{tabular} BORROWER \begin{tabular}{|l|l|l|l|} \hline Card_no & Name & Address & Phone \\ \hline \end{tabular}