Find all the forenames of distinct drivers who won in position 1 as driver standing and had more than 20 points?
return drivers ;return #1 who  won in  position 1 as driver standing ;return points of #2 ;return #2 where #3 is higher than 20 ;return distinct #4 ;return forenames of #5
['select', 'filter', 'project', 'comparative', 'project', 'project']