A flying machine with a yellow sail is landing with industrial buildings in the background.
There's a flying machine preparing to land on an airstrip.
Flying machines can land on places other than on an airstrip, it may not be landing on one.
exists e1 e2 s1 s2 x1 x2 x3 x4.(n_background(x4) & with(e2,x3) & in(x3,x4) & n_building(x3) & a_industrial(s2) & Theme(s2,x3) & Actor(e2,x1) & v_land(e2) & with(x1,x2) & n_sail(x2) & a_yellow(s1) & Theme(s1,x2) & n_machine(x1) & Actor(e1,x1) & v_fly(e1))
exists p1 x1 e1 e2 p2 x2 x3.((x1 = x2) & Topic(e2,p2) & Actor(e2,x3) & v_prepare(e2) & exists e3 x4.(on(e3,x4) & n_airstrip(x4) & Actor(e3,x3) & v_land(e3)) & (x2 = x3) & n_machine(x2) & Actor(e1,x2) & v_fly(e1))