Funding for this research was provided by:
Horizon 2020 Framework Programme (677312)
Stichting voor de Technische Wetenschappen (13740)
Text and Data Mining valid from 2019-06-17
Received: 12 February 2019
Accepted: 27 May 2019
First Online: 17 June 2019
: The authors declare that they have no competing interests.