Two kids with blond-hair sit atop a four-wheeler.
Two blonde girls are going for a ride on the four-wheeler.
The girls are not necessarily going for a ride on the four-wheeler just because they are sitting atop of it.
exists e1 x1 x2 x3.(atop(e1,x3) & n_four-wheeler(x3) & Actor(e1,x1) & v_sit(e1) & with(x1,x2) & n_blond-hair(x2) & n_kid(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_four-wheeler(x3) & for(e1,x2) & on(x2,x3) & n_ride(x2) & Actor(e1,x1) & v_go(e1) & n_girl(x1) & a_blonde(s1) & Theme(s1,x1) & card_eq_2(x1))