Funding for this research was provided by:
Javna Agencija za Raziskovalno Dejavnost RS (P1-0099, L1-8135, J1-9149 and N1-0124)
Ministrstvo za visoko šolstvo, znanost in tehnologijo (Early career researcher 2.1 grant)
Text and Data Mining valid from 2020-01-29
Received: 8 May 2019
Accepted: 26 November 2019
First Online: 29 January 2020
: The authors declare no competing interests.