A lot of people are attending an aviation exposition.
People are joining together to meet.
when people are joining together to meet they will not only choose to attend an aviation exposition
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_attend(e1) & n_exposition(x3) & of(x3,x4) & n_aviation(x4) & of(x1,x2) & n_people(x2) & n_lot(x1))
exists e1 p1 s1 x1 x2.(Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_meet(e2)) & a_together(s1) & Manner(e1,s1) & Actor(e1,x2) & v_join(e1) & n_people(x2) & n_people(x1))