Spanish Bert2Bert fine-tuned on Quora question pairs dataset

Fine-tuning of a question generator model into a paraphraser model using a poor-man's translation of the Quora question pairs dataset. It basically rephrases questions into similar questions. Non interrogative sentences are not handled very well.

Original models: mrm8488/bert2bert-spanish-question-generation, which is based on dccuchile/bert-base-spanish-wwm-cased (?).
Custom database: "Poor-man's" translation of duplicated questions in Quora (translated with Helsinki-NLP/opus-mt-en-es)