A man carrying steel beams across a lumberyard.
A man is doing an office job.
carrying steel beams means he's not doing an office job
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_carry(e1) & across(x3,x5) & n_lumberyard(x5) & n_beam(x3) & of(x3,x4) & n_steel(x4) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_job(x2) & of(x2,x3) & n_office(x3) & n_man(x1))