Complex sentence: Al Taawon U20 won the group stage and went to the knockout stage, with Al Alahli U20 named the best second place after acquiring 14 points in the group stage.
Split into simpler sentences: Al Taawon U20 won the group stage and went to the knockout stage. As for the best second place, Al Alahli U20 was named best second place for acquiring 14 points in the group stage.