A man wearing a collared shirt is using a computer.
A man lost his shirt while driving.
The man did not lose his shirt if he is wearing it and he is using a computer, not driving
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_use(e2) & n_computer(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_collared(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e2 e1 x1 x2.(while(e1,e2) & Actor(e2,x1) & v_drive(e2) & Theme(e1,x2) & Actor(e1,x1) & v_lose(e1) & n_shirt(x2) & of(x2,x1) & n_male(x1) & n_man(x1))