A boy wearing a hat and swim trunks stands on the beach while holding his towel.
The boy got out of the water.
A boy stands on the beach while holding his towel does not imply he got out of the water.
exists e3 e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(n_towel(x8) & of(x8,x7) & n_male(x7) & n_beach(x7) & while(e2,e3) & Theme(e3,x8) & Actor(e3,x1) & v_hold(e3) & on(e2,x7) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & subset_of(x5,x3) & n_trunk(x5) & of(x5,x6) & n_swim(x6) & subset_of(x4,x3) & n_hat(x4) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2.(n_water(x2) & n_boy(x1) & r_out(e1) & of(e1,x2) & Actor(e1,x1) & v_get(e1))