The airplane is billowing smoke and looks like it may crash.
An airplane in need of repair.
When an airplane is billowing smoke it must be in need of repair.
exists e3 e2 e1 p1 x1 x2.(n_thing(x1) & n_airplane(x1) & like(e2,e3) & exists e4.(Actor(e4,x1) & v_crash(e4)) & Topic(e3,p1) & Actor(e3,x1) & v_may(e3) & Actor(e2,x1) & v_look(e2) & Theme(e1,x2) & Actor(e1,x1) & v_billow(e1) & n_smoke(x2))
exists x1 x2 x3.(a_topic(x1) & of(x1,x3) & n_repair(x3) & in(x1,x2) & n_need(x2) & n_airplane(x1))