Table 1. Comparison of the text mining methods used in the King’s [34] vs. UCL analysis.

	King’s	UCL
Software	Natural Language Toolkit 3.0 (MALLET)	Iramuteq 0.7 alpha 2
Programming language	Python	R
Topic modelling method	Latent Dirichlet Allocation (LDA)	Descending Hierarchical Clustering (DHC)
Generative technique	Finding similarities	Finding differences
Website	http://www.nltk.org/	http://www.iramuteq.org/
Reference	Bird S, Loper E, Klein E. Natural Language Processing with Python. 2009. O’Reilly Media Inc.	Ratinaud P. IRAMUTEQ: Interface de R pour les Analyses Multi-dimensionnelles de Textes et de Questionnaires [Computer software]. 2009.