public int getTripleIndexByPredicate( Vector<Vector<String>> tripleVector, String predicate) 
	{
		for(int i=0; i<tripleVector.size() ;i++)
		{ Vector<String> t = tripleVector.get(i);
		if( t != null ) 
			if( t.get(1)!=null && ((String)t.get(1)).equals(predicate))
			{return i;}

		}
		return -1;
	}//public String getTripleObjectByPredicate( triple, uris.daysURI) )