Question about missing json files

[nightrain-vampire]

In the QA_Generation.ipynb, there is:

extend_sg = json.load(open(annotation_dir + 'extend_scene_graph.json'))
sg = json.load(open(annotation_dir + 'scene_graph.json'))

However, I can not find extend_scene_graph.json or scene_graph.json in STAR_Benchmark. I also search the Charades homepage and ActionGenome, but find nothing. Could you tell me how to generate these two json files, or could you please provide extend_scene_graph.json or scene_graph.json you used? Thank you very much!