Problem $5$: Draw the qualitative influence lines for the structure shown.

$5\mathrm{.}1)$ Draw the qualitative influence lines for the vertical reactions at supports $\backslash ($ A$,$ C$,$ E $\backslash ),$ and $\backslash ($ G $\backslash ).$

$5\mathrm{.}2)$ Draw the qualitative influence lines for the shear and bending moment at point $\backslash ($ D $\backslash ).$

$5\mathrm{.}3)$ Draw the qualitative influence lines for the shear at the internal hinges $\backslash ($ B $\backslash )$ and $\backslash ($ F $\backslash ).$