Read the following text and summarize the key points about challenges and evaluation methods in summarization:

Despite significant advancements in summarization techniques, several challenges remain. One major challenge is dealing with complex linguistic phenomena, such as ambiguity, anaphora resolution, and understanding context and discourse structure. Another challenge is ensuring the coherence and readability of summaries, especially in abstractive summarization, where the generated text may not follow the same structure as the original. Summarizing multi-document or multi-modal sources, such as combining text, images, and videos, also presents additional complexities. To evaluate the quality and effectiveness of summarization systems, various evaluation metrics are employed, including ROUGE (Recall-Oriented Understudy for Gisting Evaluation), which measures the overlap between the generated summary and reference summaries, and human evaluation methods that assess factors like coherence, informativeness, and overall quality.
Read the following text and summarize the key points about challenges and evaluation methods in summarization:

Despite significant advancements in summarization techniques, several challenges remain. One major challenge is dealing with complex linguistic phenomena, such as ambiguity, anaphora resolution, and understanding context and discourse structure. Another challenge is ensuring the coherence and readability of summaries, especially in abstractive summarization, where the generated text may not follow the same structure as the original. Summarizing multi-document or multi-modal sources, such as combining text, images, and videos, also presents additional complexities. To evaluate the quality and effectiveness of summarization systems, various evaluation metrics are employed, including ROUGE (Recall-Oriented Understudy for Gisting Evaluation), which measures the overlap between the generated summary and reference summaries, and human evaluation methods that assess factors like coherence, informativeness, and overall quality.
user
The text highlights key challenges in summarization, such as dealing with complex linguistic phenomena, ensuring coherence and readability (especially in abstractive summarization), and summarizing multi-document or multi-modal sources. It also discusses evaluation methods, including ROUGE (which measures overlap with reference summaries) and human evaluation of factors like coherence, informativeness, and overall quality.
assistant
Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Read the article below:

Middle-of-funnel content

At this next stage, your target audience is now aware of your business and the solution you provide, and they’re interested.

They trust you enough to make slightly bigger commitments, like signing up for a webinar and engaging with longer-form content; and they’re interested enough in your offering to read brand-specific material like case studies, testimonials, and newsletter emails.

Their goal is to learn more about the solution you provide—both in general and the one specifically offered by your business.

Your goal is to educate them on your offering and set your business apart from competitors—not just with your features and benefits but with your expertise and knowledge.

Next, write a summary of what it says about Middle-of-funnel content
Response: Middle-of-funnel content includes brand-specific content that educates interested audiences that are already considering an offer.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.
