Persons are taking care of some animal.
Some zookeepers help a rhino.
Not all persons are zookeepers. Not all animals are a rhino.
exists e1 x1 x2 x3.(of(e1,x3) & n_animal(x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_care(x2) & n_person(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_help(e1) & n_rhino(x2) & n_zookeeper(x1))