Final stages of the hold'em poker game
This act of revealing of the first three cards is called "flop", the fourth revealing is "Fourth Street" or "Turn" and the fifth card is known as "Fifth Street" or river". Eventually each player have seven cards to play with, any possible combination is possible and at this stage the total cards from the card deck that are involved in the game in this stage are eleven, that's almost a fifth of the entire card deck and as more players enter the game the statistic of the cards gets more and more interesting.
The goal of the players is to use the available cards to create the best poker hand. After all of the five cards are visible at the center of the table than the fourth round starts (in each round a card is exposed) and the bets begin again from the player left to the 'button'.
After this final bet the players reveal their cards and the person with the best hand wins.