The people are walking up the ramp and the man in walking on the road.
some people are outside
Just because the people are walking up the ramp doesn't mean they are outside.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(n_road(x6) & n_man(x4) & n_ramp(x3) & n_people(x1) & a_up(s1) & Manner(e2,s1) & Theme(e2,x2) & Actor(e2,x1) & v_walk(e2) & subset_of(x4,x2) & on(e1,x6) & Actor(e1,x5) & v_walk(e1) & (x4 = x5) & subset_of(x3,x2))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_people(x1))