A lot of people are attending an aviation exposition.
The aviation exposition was short staffed.
when aviation exposition are short staffed that doesn't imply that lots of people are attending
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 s1 s2 x1 x2.(n_exposition(x1) & of(x1,x2) & n_aviation(x2) & a_staffed(s2) & Manner(s1,s2) & Theme(s1,x1) & a_short(s1))