What is the meaning of create a preferential how this voting system works

It is a system of voting that allows a citizen to individually number and rank all candidates for both houses of parliament according to their preferences. Which means a citizen's vote can still be counted, even if their first choice of candidate is eliminated due to a lack of votes.

one thousand and one nights, also known as arabian nights is a collection of stories whose basic structure is that of embedded narrative. this technique refers to a main story which works as the common frame - or framing narrative - for the other stories, and then this series of stories which are connected to the main one. this technique can also be referred to as a story within a story. the stories stem from the original tale, some begin and end on their own, some are connected to the previous or following one, by means of questions that are answered in the subsequent tale, or characters which reappear.