A beige puppy walks across the floor.
A puppy walks.
Both subjects walks
exists e1 s1 x1 x2.(n_floor(x2) & across(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_puppy(x1) & a_beige(s1) & Theme(s1,x1))
exists e1 x1.(Actor(e1,x1) & v_walk(e1) & n_puppy(x1))