public void twoTriplesWithDifferentSPartitionDifferently() {
assertFalse(partition(A, B, C) == partition(C, C, B));
}
int partition(Node x,Node y,Node z) {
WritableTriple wt=new WritableTriple(new Triple(x,y,z));
return that.getPartition(wt,wt,NPARTITIONS);
}