A person falls toward a large group of people holding a cloth "net".
Everybody is sitting in a chair.
if everyone is sitting in a chair no one could fall
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(toward(e1,x2) & of(x2,x3) & Theme(e2,x5) & Actor(e2,x4) & v_hold(e2) & n_net(x5) & a_''(s2) & Theme(s2,x5) & of(x5,x6) & n_cloth(x6) & (x3 = x4) & n_people(x3) & n_group(x2) & a_large(s1) & Theme(s1,x2) & Actor(e1,x1) & v_fall(e1) & n_person(x1))
all x1.(n_person(x1) -> exists e1 x2.(in(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_sit(e1)))