Some cows cluster together.
There are multiple cows
Some cows implies there are multiple cows.
exists e1 p1 x1.(exists s1.(Theme(s1,x1) & a_together(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_cluster(e1) & n_cow(x1))
exists p1 x1 s1 x2.((x1 = x2) & n_cow(x2) & a_multiple(s1) & Theme(s1,x2))