A research team is developing a system to generate short, creative story paragraphs from scratch, with no initial text provided other than a signal to start generating. They have access to a powerful pre-trained model that was exclusively trained using an objective where 100% of the input text tokens were consistently replaced with a special [MASK] token, and the model's goal was to reconstruct the original text. Based on its training method, evaluate the suitability of this pre-trained model for the team's creative story generation task. Justify your reasoning by explaining the core capability the model likely developed during its training.