$(20\%)$ Simplify the following Boolean expressions to minimum sum$-$of$-$products and product$-$of$-$sums:

$($A$)F_5=A{C}^{\text{'}}{D}^{\text{'}}+C^{\text{'}}D+A{B}^{\text{'}}+A{B}^{\text{'}}CD$

$($B$)F_6=(A^{\text{'}}+B+D^{\text{'}})(A^{\text{'}}+B^{\text{'}}+C^{\text{'}})(A^{\text{'}}+B^{\text{'}}+C)(B^{\text{'}}+C+D)$