Represent the given dialogue about an image, which is used for image retrieval: Q:what color are the trains
A:silver and blue
Q:can you see 2 separate tracks
A:yes
Q:are there people standing waiting for the trains
A:no
Q:is it daytime
A:yes
Q:can you see any platforms
A:no
Q:is there any writing on the trains
A:no
Q:are they passenger trains or cargo train
A:passenger
Q:can you see train caboose
A:yes
Q:what color is the caboose
A:blue
Q:is there any signs or signals near the trains
A:yes


['images/VisDial/Train/VisDial_image_74617.jpg', 'images/VisDial/Train/VisDial_image_55924.jpg', 'images/VisDial/Train/VisDial_image_40199.jpg', 'images/VisDial/Train/VisDial_image_107617.jpg', 'images/VisDial/Train/VisDial_image_50471.jpg', 'images/VisDial/Train/VisDial_image_44460.jpg', 'images/VisDial/Train/VisDial_image_41255.jpg', 'images/VisDial/Train/VisDial_image_11183.jpg', 'images/VisDial/Train/VisDial_image_3608.jpg', 'images/VisDial/Train/VisDial_image_112493.jpg', 'images/VisDial/Train/VisDial_image_72742.jpg', 'images/VisDial/Train/VisDial_image_108276.jpg']