Help with this problem please!

Show that in the draw from the top of a deck of cards, the event E={kh, ks, qh} and F={kh, kc, qh} are conditionally independent given G={kh, ks, kc, kd}. Determine whether E and F are conditionally independent given G, that is G with a dash on top.

I don't understand the book's explanation so help is very appreciated.

Thank you!!!