A developer needs a language model to generate a one-sentence summary of a customer review. To do this, the developer will place the customer's review into a pre-defined text structure. Which of the following structures uses its fixed, unchanging text most effectively to instruct the model to perform this specific task?

Constructing a Prompt for Email Classification

Example of a Prompt Template for Semantic Similarity

A developer is using the text structure 'Here is some text: {unstructured_text}. What are the key-value pairs?' to extract information from a user's message. The model's responses are often conversational and not in the desired structured format. Which of the following changes to the fixed, instructional text would be most effective at guiding the model to produce a structured key-value pair output?