We compare the following methods: (1) Fu2014, (2) Ours (L), and (3) Ours (LV), as described above; (4) Bansal2014: The model by <cite>Bansal et al. (2014)</cite> retrained using our dataset; (5) Ours (LB): By excluding visual features, but including other language features from <cite>Bansal et al. (2014)</cite> ; (6) Ours (LVB): Our full model further enhanced with all semantic features from <cite>Bansal et al. (2014)</cite> ; (7) Ours (LVB -E): By excluding word embeddingbased language features from Ours (LVB).