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Text summarization is a common task that demonstrates the instruction-following ability of Large Language Models. A typical prompt for this task, often denoted as `x`, is composed of an instruction and a user input. For example, a prompt might be structured with an instruction like 'Summarize the following article,' which is then followed by the article text that serves as the user input. The model's objective is to adhere to the instruction and generate a concise summary of the provided document.

Example of Instruction Following: Summarization

An example of a prompt for text summarization that includes a specific constraint is the instruction: 'Summarize this text in three sentences.' This command directs a Large Language Model not only to perform the summarization task but also to adhere to a strict output length of exactly three sentences.

Example of a Summarization Prompt with a Sentence Constraint

Based on the typical structure of a prompt for a summarization task, analyze the following scenario and explain the most likely reason why the language model failed to perform the task correctly.

Diagnosing a Failed Summarization Attempt

Constrained prompts direct a model to perform a task while adhering to specific limitations. For instance, a prompt for text summarization could impose a length constraint, such as 'Summarize the following article in no more than 50 words,' or a structural constraint, like 'Summarize this text in three sentences.'

Examples of Constrained Prompts for Text Summarization

Imagine you want a large language model to summarize a long document. Construct a complete and effective prompt for this task. Your prompt should contain both a clear instruction for the model and a clear indication of where the document's text would be placed.

Constructing a Summarization Prompt

A user provides a language model with the following prompt, which includes an instruction and a text passage. Based on the model's response, which statement best analyzes its performance in following the given instruction?

**Instruction:**
'Summarize the following text.'

**Text:**
'The water cycle describes the continuous movement of water on, above, and below the surface of the Earth. The main processes involved are evaporation, where water turns into vapor; condensation, where vapor forms cl

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