Data set is downloaded from http://nlp.stanford.edu/projects/snli/
Comparision of Sentence Encode Model and other convitional methods is at:
Bowman et al. '15 http://nlp.stanford.edu/pubs/snli_paper.pdf
Neural attention with a match LSTM method is at:
Rocktäschel et al. '15 http://arxiv.org/pdf/1512.08849v1.pdf