public function addPlace(Place $place) {
		if(!is_null($place) && !$place->isEmpty()){
			$place_name = $place->getFullName();
			if(isset($this->places[$place_name])){
				$this->places[$place_name]+=1;
			}
			else{
				$this->places[$place_name] = 1;
			}
		}
	}