Alternative word generation 

Explore https://github.com/vsuthichai/paraphraser and submit a quick review

We can use T5 model, read the below articles
- https://ai.googleblog.com/2020/02/exploring-transfer-learning-with-t5.html
- https://towardsdatascience.com/paraphrase-any-question-with-t5-text-to-text-transfer-transformer-pretrained-model-and-cbb9e35f1555