A floor framing plan for a given building is shown in the figure below. The reinforced concrete $($RC$)$ slab sits on top of the floor beams and does not make contacts with the girders. This gives rise to the so$-$called one$-$way slab behavior ${?}^1$ when estimating loads carried by beams and girders. The shaded areas in the figure shows the tributary areas ${?}^2$ of floor beam B$1$ and B$4,$ respectively.

Please solve the support reactions and include a free body diagram. Based on the vertical load paths, plot the moment diagrams of floor beam B$1$ and girder G$1,$ respectively. Assume the self$-$weight of the floor beam $B1$ and girder $G1$ can be neglected compared to the bending moment caused by the slab weight. The thickness of the RC slab is $4$ inches, and the unit weight of reinforced concrete is $150$ pcf$.$

Hint: All floor beams and girders are assumed herein as simply supported beams.