An older person and a small boy play in the sand near the water.
The older person is the boy's father.
There is nothing to indicate that the older person is the boy's father.
exists s1 s2 s3 x1 x2 x3 x4 x5.(n_water(x5) & n_sand(x4) & a_topic(s1) & subset_of(x2,s1) & near(x2,x5) & in(x2,x4) & n_play(x2) & of(x2,x3) & n_boy(x3) & a_small(s3) & Theme(s3,x2) & subset_of(x1,s1) & n_person(x1) & r_more(s2) & a_older(s2) & Theme(s2,x1))
exists p1 s1 x1 x2 x3.(n_father(x3) & of(x3,x2) & n_boy(x2) & n_person(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1) & (x1 = x3))