A boy is walking a small white dog down the street.
The boy is alongside the street.
A street is used for walking.
exists e1 s1 s2 x1 x2 x3.(n_street(x3) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & down(x2,x3) & n_dog(x2) & a_white(s2) & Theme(s2,x2) & a_small(s1) & Theme(s1,x2) & n_boy(x1))
exists p1 x1 x2.(n_street(x2) & n_boy(x1) & alongside(x1,x2))