A man with a black shirt is repairing a laptop.
A computer technician is replacing a broken laptop screen.
A man with a black shirt does not imply a computer technician and repairing does not necessarily imply replacing a broken screen.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_repair(e1) & n_laptop(x3) & with(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_replace(e1) & n_screen(x3) & of(x3,x4) & n_laptop(x4) & a_broken(s1) & Theme(s1,x3) & n_technician(x1) & of(x1,x2) & n_computer(x2))