The National Centre for Text Mining, Manchester Interdisciplinary Biocentre, University of Manchester, Manchester, UK. makoto.miwa@manchester.ac.uk|The National Centre for Text Mining, Manchester Interdisciplinary Biocentre, University of Manchester, Manchester, UK. makoto.miwa@manchester.ac.uk|The National Centre for Text Mining, Manchester Interdisciplinary Biocentre, University of Manchester, Manchester, UK. makoto.miwa@manchester.ac.uk|The National Centre for Text Mining, Manchester Interdisciplinary Biocentre, University of Manchester, Manchester, UK. makoto.miwa@manchester.ac.uk|The National Centre for Text Mining, Manchester Interdisciplinary Biocentre, University of Manchester, Manchester, UK. makoto.miwa@manchester.ac.uk