$($Standard forms$)$ Using the map method, find the standard sum$-$of$-$products

form for the following Boolean functions.

a$)$ F $=$ w$\text{'}$y$\text{'}$z$\text{'}+$ xy$\text{'}$z $+$ wyz $+$ x$\text{'}$yz$\text{'}$

b$)$ F $=$ w$\text{'}$z$\text{'}+$ yz $+$ wz