Represent the given dialogue about an image, which is used for image retrieval: Q:what is the metal structure
A:some kind of bridge i think
Q:is the train a passenger train
A:no
Q:it is a freight train
A:yes
Q:is there a number on the train
A:66520
Q:can you see the engine of the train
A:no
Q:does the train have a caboose
A:yes
Q:is the caboose red
A:no yellow
Q:is there more than 1 train track
A:no
Q:is the train in motion
A:no
Q:does the bridge have cars on it
A:no


['images/VisDial/Train/VisDial_image_40956.jpg', 'images/VisDial/Train/VisDial_image_61576.jpg', 'images/VisDial/Train/VisDial_image_93064.jpg', 'images/VisDial/Train/VisDial_image_78363.jpg', 'images/VisDial/Train/VisDial_image_2379.jpg', 'images/VisDial/Train/VisDial_image_62021.jpg', 'images/VisDial/Train/VisDial_image_67700.jpg', 'images/VisDial/Train/VisDial_image_32235.jpg', 'images/VisDial/Train/VisDial_image_2742.jpg', 'images/VisDial/Train/VisDial_image_57649.jpg', 'images/VisDial/Train/VisDial_image_115236.jpg', 'images/VisDial/Train/VisDial_image_38528.jpg']