It's a famous word game, where the goal is to fill in as many categories as possible with words starting with the letter drawn.
Each player who has an answer answered only by him earns 10 points
if another player also answers the same thing, there are 5 points for each one
and "zero" for the one who does not answer or answers something not pertinent to the topic. (word must exist and be recognized by the group as being valid).
If in the round only one player gives the right answer to a theme, he earns 15 points.
After the "round" has been scored, a new letter is drawn and everything starts again.
At the end of several rounds it is added up and the winner of the game is verified.