Six persons A, B, C, D, E and F are playing a game of cards. A's father, mother, sister and uncle are in the group. The sixth person is unrelated to the other five people. B, the mother of A got more points than her husband. D got more points than E but less than F. Father got more than the son and E got the lowest points. A got more points than F but could not win the game. Sister got the lowest points.

Who won the game?