Represent the given dialogue about an image, which is used for image retrieval: Q:what color is train
A:blue, yellow and red
Q:is there roof on bridge
A:yes
Q:is it passenger train
A:yes
Q:what color is roof
A:blue
Q:does it look like older train
A:somewhat
Q:what is bridge made of
A:metal
Q:what is under bridge
A:train and tracks
Q:is it day or night
A:day
Q:sunny
A:overcast
Q:can you see sky
A:yes


['images/VisDial/Train/VisDial_image_19423.jpg', 'images/VisDial/Train/VisDial_image_47787.jpg', 'images/VisDial/Train/VisDial_image_47045.jpg', 'images/VisDial/Train/VisDial_image_47289.jpg', 'images/VisDial/Train/VisDial_image_17424.jpg', 'images/VisDial/Train/VisDial_image_78021.jpg', 'images/VisDial/Train/VisDial_image_7226.jpg', 'images/VisDial/Train/VisDial_image_30118.jpg', 'images/VisDial/Train/VisDial_image_77100.jpg', 'images/VisDial/Train/VisDial_image_50156.jpg', 'images/VisDial/Train/VisDial_image_7430.jpg', 'images/VisDial/Train/VisDial_image_28009.jpg']