a crowd of people standing next to a sign while some check their cellphone
The people are standing next to a traffic sign.
The sign people are standing next to may be not a traffic sign.
exists e1 p1 x1 x2 x3 x4 x6.(a_topic(x1) & of(x1,x2) & exists e2 x5.(Theme(e2,x6) & Actor(e2,x5) & v_check(e2) & n_thing(x5)) & n_cellphone(x6) & of(x6,x1) & n_thing(x1) & while(e1,p1) & to(e1,x4) & n_sign(x4) & r_next(e1) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_people(x2) & n_crowd(x1))
exists e1 x1 x2 x3.(n_people(x1) & to(e1,x2) & n_sign(x2) & of(x2,x3) & n_traffic(x3) & r_next(e1) & Actor(e1,x1) & v_stand(e1))