Information Sets:

Information sets are sets of nodes in a game tree where a player cannot distinguish between the different choices available to them. In the simplified poker game, there are $12$ information sets, given as follows:

Player $1$ after receiving the card $($Jack$,$ Queen, King$)$

Player $2$ after receiving the card $($Jack$,$ Queen, King$)$

Player $1$ after first action $($check$,$ bet$)$

Player $2$ after first action $($check$,$ bet$)$

Player $1$ after second action $($fold$,$ call$)$

Player $2$ after second action $($check$,$ bet$)$

Player $1$ after third action $($fold$,$ call$)$

Player $2$ after third action $($fold$,$ call$)$

Showdown $($both players have cards, Jack$)$

Showdown $($one player has Jack and the other has Queen$)$

Showdown $($one player has Jack and the other has King$)$

Showdown $($both players have Queen or King$)....$write the above data in simple language