A man in a blue shirt and safety glasses grinds a piece of metal which throws sparks.
The man is sawing a piece of plywood.
The man either grinds metal or is sawing plywood.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(Theme(e2,x6) & Actor(e2,x1) & v_grind(e2) & Theme(e1,x9) & Actor(e1,x8) & v_throw(e1) & n_sparks(x9) & (x6 = x8) & of(x6,x7) & n_metal(x7) & n_piece(x6) & in(x1,x2) & subset_of(x4,x2) & n_glass(x4) & of(x4,x5) & n_safety(x5) & subset_of(x3,x2) & n_shirt(x3) & a_blue(s1) & Theme(s1,x3) & n_man(x1))
exists e1 x1 x2 x3.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_saw(e1) & of(x2,x3) & n_plywood(x3) & n_piece(x2))