A woman is welding metal at a work table.
The woman is working at the table.
if she is welding metal at a work table, then she is working at the table.
exists e1 x1 x2 x3 x4.(at(e1,x3) & n_table(x3) & of(x3,x4) & n_work(x4) & Theme(e1,x2) & Actor(e1,x1) & v_weld(e1) & n_metal(x2) & n_woman(x1))
exists e1 x1 x2.(n_table(x2) & n_woman(x1) & at(e1,x2) & Actor(e1,x1) & v_work(e1))