下载 imagenet url ( link ) 后，我看到它是一个 1.1 GB 的文本文件，开头是这样的：

n00004475_6590    http://farm4.static.flickr.com/3175/2737866473_7958dc8760.jpg
n00004475_15899    http://farm4.static.flickr.com/3276/2875184020_9944005d0d.jpg
n00004475_32312    http://farm3.static.flickr.com/2531/4094333885_e8462a8338.jpg
n00004475_35466    http://farm4.static.flickr.com/3289/2809605169_8efe2b8f27.jpg
n00004475_39382    http://2.bp.blogspot.com/_SrRTF97Kbfo/SUqT9y-qTVI/AAAAAAAABmg/saRXhruwS6M/s400/bARADEI.jpg
n00004475_41022    http://fortunaweb.com.ar/wp-content/uploads/2009/10/Caroline-Atkinson-FMI.jpg
n00004475_42770    http://farm4.static.flickr.com/3488/4051378654_238ca94313.jpg
n00004475_54295    http://farm4.static.flickr.com/3368/3198142470_6eb0be5f32.jpg
n00005787_13    http://www.powercai.net/Photo/UploadPhotos/200503/20050307172201492.jpg
n00005787_32    http://www.web07.cn/uploads/Photo/c101122/12Z3Y54RZ-22027.jpg

我很确定n00004475_6590是图像的类别。我如何查找这意味着什么（用自然语言）？