A flying machine with a yellow sail is landing with industrial buildings in the background.
The flying machine returns to the landing pad after delivering boxes to customers.
Flying machines are used for many activities, not always delivering boxes to customers. We can't know the flying manchine's past activities.
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 e1 e2 x1 x2 x3 x4 x5 x6 x7.(n_pad(x3) & of(x3,x4) & n_landing(x4) & n_return(x1) & of(x1,x2) & n_machine(x2) & Actor(e1,x1) & v_fly(e1) & a_topic(x1) & to(x1,x3) & to(e2,x7) & n_customer(x7) & Theme(e2,x6) & Actor(e2,x5) & v_deliver(e2) & n_box(x6) & (x3 = x5))