People walking in a park with green grass, trees and red flowers.
Some people are outside.
Since people are in a park with green grass, the people are outside.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & in(e1,x3) & with(x3,x4) & rel(x4,x5) & n_flower(x7) & a_red(s2) & Theme(s2,x7) & n_tree(x6) & subset_of(x7,x5) & subset_of(x6,x5) & n_grass(x4) & a_green(s1) & Theme(s1,x4) & n_park(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_people(x1))