in a chess tournament take part 5 chess players. Determine the results of all games if we know that :

1) every player played with 4 other players

2) all players have different points(results)

3)the winner didn't have any draw

4)the second place didn't lose any game

5)the fourth place didn't win any game

and we know that if a player wins a game takes 1 point if he lose 0 and for draw 0.5