Formulate the problem as a standard Transshipment Problem $($NOT an extended HTP$).$

$4\mathrm{.}1$ Develop the problem's system of equations. Discuss the problem as a linear program. Draw and compare the "network" for HTP and TP$.$

$4\mathrm{.}2$ Solve the LP$-$problem using any available software package.

$4\mathrm{.}3$ Reformulate the problem for the Out$-$of$-$Kilter $($or other general network$)$ algorithm. Draw the OKA network and discuss the process and the results. No need to solve.