People walking in a big puddle.
People are swimming in the big puddles
You can't swim in big puddles while walking in them.
exists e1 s1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_puddle(x3) & a_big(s1) & Theme(s1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists e1 s1 x1 x2.(n_puddle(x2) & a_big(s1) & Theme(s1,x2) & in(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_people(x1))