1. This paper concludes with a discussion of future research consideration in section 5.
2. Section 5 summarizes the results of this investigation.
3. Section 5 gives the conclusions and future directions of research.
4. Section 7 provides a summary and a discussion of some extensions of the paper.
5. Finally, conclusions and future work are summarized
6. The basic questions posed above are then discussed and conclusions are drawn.
7. Section 7 is the conclusion of the paper.