Represent the given dialogue about an image, which is used for image retrieval: Q:is the train going fast
A:yes
Q:are there other vehicles
A:i don't see any
Q:is there any people
A:i don't see anyone
Q:is this a passenger train
A:i think so
Q:how many tracks can you see
A:2 sets
Q:any buildings
A:no just the bridge
Q:can you see the sky
A:no but the sun is coming down
Q:is the sky reddish
A:i can't see it
Q:is the bridge made of concrete
A:yes
Q:are there trees
A:just some grass


['images/VisDial/Train/VisDial_image_50924.jpg', 'images/VisDial/Train/VisDial_image_55724.jpg', 'images/VisDial/Train/VisDial_image_18817.jpg', 'images/VisDial/Train/VisDial_image_18382.jpg', 'images/VisDial/Train/VisDial_image_244.jpg', 'images/VisDial/Train/VisDial_image_20022.jpg', 'images/VisDial/Train/VisDial_image_88301.jpg', 'images/VisDial/Train/VisDial_image_61576.jpg', 'images/VisDial/Train/VisDial_image_45062.jpg', 'images/VisDial/Train/VisDial_image_62466.jpg', 'images/VisDial/Train/VisDial_image_782.jpg', 'images/VisDial/Train/VisDial_image_22524.jpg']