A group of people on a hot day playing in a cool fountain.
A group of people swimming in the middle of the ocean.
One cannot be swimming and playing in a fountain simultaneously.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x5) & n_fountain(x5) & a_cool(s2) & Theme(s2,x5) & Actor(e1,x4) & v_play(e1) & (x1 = x4) & on(x1,x3) & n_day(x3) & a_hot(s1) & Theme(s1,x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3 x4 x5.(n_ocean(x5) & n_middle(x4) & a_topic(x1) & of(x1,x2) & in(e1,x4) & of(x4,x5) & Actor(e1,x3) & v_swim(e1) & (x2 = x3) & n_people(x2) & n_group(x1))