Two guys are on a rig, and one is looking at the sky.
A dragon is hiding alone in the basement.
The subject could be either a dragon or two guys.
exists e1 p1 x1 x2 x3.(n_sky(x3) & at(e1,x3) & Actor(e1,x2) & v_look(e1) & n_thing(x2) & card_eq_1(x2) & exists x4.(on(x1,x4) & n_rig(x4)) & n_guy(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(n_basement(x2) & in(e1,x2) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_hide(e1) & n_dragon(x1))