A team is fine-tuning a language model to generate marketing copy for social media posts. One engineer suggests using the simple instruction 'Write an ad' for all training examples. Another engineer argues for a more detailed instruction, such as 'Generate a short, engaging social media post to promote a new product, highlighting its key features and including a call-to-action.' Explain why the second, more detailed instruction is more likely to produce a successful model. In your explanation, contrast the potential outcomes of using each instruction.