Mscoco evaluation (CIDEr score)

I have two files (one for the references and the second for candidate captions), one in a JSON format (id, captions[]) and another text file (id, caption), and I need to evaluate it using this GitHub https://github.com/tylin/coco-caption. This link already works in their files, but my file is slightly different, so I want to manage the code to work with my files.

The attachment is just an example