@Override
	public String toString() {
		String ret = "[Person] : \n";
		
		for(Person pers : getAllPersons()){
			ret += pers + "\n";
		}
		
		ret += "\n[Relations] : \n";
		
		for(Relationship rel : GlobalGraphOperations.at(graphDb).getAllRelationships()){
			String propert = "";
			for( String currentKey : rel.getPropertyKeys()){
				propert += "("+currentKey+","+rel.getProperty(currentKey)+")";
			}
			ret += "["+rel.getId()+"] : "+rel.getStartNode()+" --> "+rel.getEndNode()+"\t"+rel.getType()+"\t"+propert+"\n";
		}
		
		ret += "\nPersonRepository [graphDb=" + graphDb + ", \nindex=" + index
				+ ", \npersonRefNode=" + personRefNode + ", \nkeywords=" + keywords + "]";
		return ret;
	}