A toddler sits on a sandy beach.
a toddler is in his bed
One can not both be in bed and on a sandy beach at the same time.
exists e1 s1 x1 x2.(on(e1,x2) & n_beach(x2) & a_sandy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_toddler(x1))
exists p1 x1 x2.(in(x1,x2) & n_bed(x2) & of(x2,x1) & n_male(x1) & n_toddler(x1))