A man sits in a glider cockpit on the landing strip.
The man is in the cockpit.
sits in a glider cockpit is inferred as in the cockpit.
exists e1 x1 x2 x3 x4 x5.(n_strip(x4) & of(x4,x5) & n_landing(x5) & on(e1,x4) & in(e1,x2) & n_cockpit(x2) & of(x2,x3) & n_glider(x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists p1 x1 x2.(n_cockpit(x2) & n_man(x1) & in(x1,x2))