Text and Data Mining valid from 2017-09-20
Received: 26 April 2016
Accepted: 7 September 2017
First Online: 20 September 2017
Compliance with Ethical Standards
: The author (Tasawar Nawaz) is the sole author of this paper, and there is no conflict of interest with any individual or organisation.
: This article contains no studies with human participants or animals performed by any of the authors.