Funding for this research was provided by:
This project was funded by the National Plan for Science, Technology and Innovation (MAARIFAH), King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia (12-MAT2912-02)
Text and Data Mining valid from 2019-08-01
Received: 28 May 2019
Accepted: 23 July 2019
First Online: 1 August 2019
: The authors declare that there are no competing interests.