A young boy in swim attire steps into the waves.
A little boy riding his tricycle.
A boy cannot step into waves and ride his tricycle at the same time.
exists s1 x1 x2 x3 x4 x5.(n_wave(x5) & a_topic(x1) & into(x1,x5) & in(x1,x2) & n_step(x2) & of(x2,x4) & n_attire(x4) & of(x2,x3) & n_swim(x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_tricycle(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))