The man, who is wearing the handkerchief, is performing a task with the tub while the woman watches.
The woman sees a man buying a tub at a garage sale.
Buying is not the same as performing a task with the tub.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7.(n_watch(x6) & of(x6,x7) & n_woman(x7) & n_tub(x5) & n_handkerchief(x3) & n_man(x1) & while(e2,x6) & with(e2,x5) & Theme(e2,x4) & Actor(e2,x1) & v_perform(e2) & n_task(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & (x1 = x2))
exists e1 e2 x1 x2 x3 x4 x5 x6.(n_woman(x1) & Theme(e2,x2) & Actor(e2,x1) & v_see(e2) & at(e1,x5) & n_sale(x5) & of(x5,x6) & n_garage(x6) & Theme(e1,x4) & Actor(e1,x3) & v_buy(e1) & n_tub(x4) & (x2 = x3) & n_man(x2))