Bibliography (6):

1. https://arxiv.org/abs/2107.07535

2. https://github.com/EleutherAI/lm-evaluation-harness

3. https://ai.google.com/research/NaturalQuestions

4. https://github.com/NVIDIA/Megatron-LM#retro

5. Wikipedia Bibliography:

   1. https://en.wikipedia.org/wiki/Language_model  :

      https://en.wikipedia.org/wiki/Language_model

   2. https://en.wikipedia.org/wiki/Question_answering  :

      https://en.wikipedia.org/wiki/Question_answering