Seeking LibreEval 1.0 Dataset for Hallucinations Detection

Hello everyone! I don't know if I'm in the right place to ask this kind of question, but anyway... I'm currently working on hallucinations detection and i was wondering where i can get dataset called "LibreEval 1.0" used in the benchmarks reported here: https://arize.com/llm-hallucination-dataset/ . I was looking for it inside the official repo on github, but I couldn't figure out what is the right dataset to use.