Man working on scaffolding at construction job site.
A man is working on scaffolding at a construction job site but he isn't wearing his helmet.
We can't determine that the man isn't wearing his helmet. He may have it on.
exists e2 e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & on(e1,e2) & at(e2,x4) & n_site(x4) & of(x4,x6) & n_job(x6) & of(x4,x5) & n_construction(x5) & Actor(e2,x3) & v_scaffold(e2) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e2 e1 x1 x2 x3 x4 x5 x6.(-exists e3.(Theme(e3,x6) & Actor(e3,x1) & v_wear(e3)) & n_helmet(x6) & of(x6,x1) & n_male(x1) & n_male(x1) & on(e1,e2) & at(e2,x3) & n_site(x3) & of(x3,x5) & n_job(x5) & of(x3,x4) & n_construction(x4) & Actor(e2,x2) & v_scaffold(e2) & Actor(e1,x1) & v_work(e1) & n_man(x1))