Regarding data count mismatch in Flickr30k dataset annotations' json file?

[Jayashree-Pougajendy]

On doing untar of flickr30k.tar.gz, under region_feat_gvd_wo_bgd folder, .h5 file has a total of 31783 files and even the flickr30k images counts to the same. But under annotations folder, dataset_flickr30k.json file has a total of 31014 entries only. All the images seem to be not covered by the json file in annotations? Kindly clarify and help!