Represent the given dialogue about an image, which is used for image retrieval: Q:what color is the flag
A:us flag
Q:is this a passenger train
A:no
Q:is it antique train
A:no
Q:is it cargo train
A:yes
Q:how many cars are there for the train
A:i can see 2
Q:what color are the cars on the train
A:yellow
Q:can you see the conductor
A:no
Q:how many tracks
A:i see 2
Q:do you see trees
A:yes
Q:is there other trains
A:no


['images/VisDial/Train/VisDial_image_32050.jpg', 'images/VisDial/Train/VisDial_image_11630.jpg', 'images/VisDial/Train/VisDial_image_4988.jpg', 'images/VisDial/Train/VisDial_image_58042.jpg', 'images/VisDial/Train/VisDial_image_96857.jpg', 'images/VisDial/Train/VisDial_image_1881.jpg', 'images/VisDial/Train/VisDial_image_49140.jpg', 'images/VisDial/Train/VisDial_image_56526.jpg', 'images/VisDial/Train/VisDial_image_27136.jpg', 'images/VisDial/Train/VisDial_image_106550.jpg', 'images/VisDial/Train/VisDial_image_56440.jpg', 'images/VisDial/Train/VisDial_image_100120.jpg']