lots of people walking under a awning of pink and white balloons
The balloons are for an event
Just because lots of people are walking under balloons doesn't necessarily mean that they are for an event.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & under(e1,x4) & of(x4,x5) & n_balloon(x5) & a_white(s2) & Theme(s2,x5) & a_pink(s1) & Theme(s1,x5) & n_awning(x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_lot(x1))
exists p1 x1.(n_balloon(x1) & exists x2.(for(x1,x2) & n_event(x2)))