public String toString()
	{
		String result = "{\n"; 
		
		for(String s: structureOrder){
			
			result +="\t"+s+ ":" + get(s).toString() + ",\n "; 
		}
		result = result.substring(0, result.lastIndexOf(",")); 
		result= result +"\n}"; 
		  
		
		return result; 
	}