A young man doing a black flip off a wall in the park on a nice day
A man is doing a physical activity in pleasant weather.
Doing a black flip off a wall is doing physical activity.  A nice day implies pleasant weather.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6.(n_park(x5) & a_topic(x1) & on(e1,x6) & n_day(x6) & a_nice(s3) & Theme(s3,x6) & in(e1,x5) & off(e1,x4) & n_wall(x4) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_flip(x3) & a_black(s2) & Theme(s2,x3) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 s2 x1 x2 x3.(in(e1,x3) & n_weather(x3) & a_pleasant(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_activity(x2) & a_physical(s1) & Theme(s1,x2) & n_man(x1))