An adult and a child walk along the beach during the day.
People walking along the beach.
adult and a child walk along the beach means people walking along the beach
exists s1 x1 x2 x3 x4 x5.(n_day(x5) & n_beach(x4) & a_topic(s1) & subset_of(x2,s1) & during(x2,x5) & along(x2,x4) & n_walk(x2) & of(x2,x3) & n_child(x3) & subset_of(x1,s1) & n_adult(x1))
exists e1 x1 x2 x3.(n_beach(x3) & a_topic(x1) & along(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))