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: Could you summarize what this article says are ways to use essential oils? The article says:
AROMA DIFFUSER
This method is beneficial for mood enhancement and upliftment.  It disinfects the air and can boost immunity through inhalation.  Fill the bowl with water, add 5-15 drops and enjoy
STEAM INHALATION
This method is used mainly for upper respiratory problems such as bronchial and sinus congestion, colds, coughs, and influenza.  Fill a large bowl with boiling water and add three drops of essential oil.  Lean over the bowl with your eyes closed and a towel over your head and inhale the steam for 5-10 minutes.
VAPORIZER
An effective decongesting method for respiratory conditions.  Add from 3 to 9 drops of essential oil to the water of the vaporizer.  Run overnight.
Response: Three ways to use essential oils include in an aroma diffuser, via steam inhalation, and in a vaporizer. 

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.

Summarize the main challenges and limitations of text summarization as discussed in the following text:

While text summarization has shown promising results and practical applications, it still faces several challenges and limitations. One major challenge is handling complex language constructs, such as metaphors, idioms, and sarcasm, which can be difficult for algorithms to interpret accurately. Another challenge is ensuring the coherence and fluency of the generated summaries, particularly in abstractive summarization, where the output is generated from scratch. Additionally, summarization systems can struggle with maintaining factual consistency and avoiding contradictions or hallucinations in the summary. Dealing with long documents or multi-document summarization, where information from multiple sources needs to be synthesized, is another significant challenge. Furthermore, capturing and preserving the context, tone, and intended meaning of the original text can be difficult, especially for abstractive summarization methods.
user
The main challenges and limitations of text summarization include: 1) Handling complex language constructs like metaphors, idioms, and sarcasm accurately. 2) Ensuring coherence and fluency of generated summaries, particularly in abstractive summarization. 3) Maintaining factual consistency and avoiding contradictions or hallucinations in the summary. 4) Dealing with long documents or multi-document summarization involving synthesizing information from multiple sources. 5) Capturing and preserving the context, tone, and intended meaning of the original text, especially for abstractive summarization methods.
assistant