Summarize the following text:

Machine learning is a subfield of artificial intelligence that gives computer systems the ability to automatically learn and improve from experience without being explicitly programmed. Machine learning algorithms build models based on sample data, called training data, in order to make predictions or decisions without being explicitly programmed to perform the task. The models are trained using large amounts of training data and algorithms that iteratively learn from that data. Machine learning systems can make predictions or decisions without being explicitly programmed for those tasks.
Summarize the following text:

Machine learning is a subfield of artificial intelligence that gives computer systems the ability to automatically learn and improve from experience without being explicitly programmed. Machine learning algorithms build models based on sample data, called training data, in order to make predictions or decisions without being explicitly programmed to perform the task. The models are trained using large amounts of training data and algorithms that iteratively learn from that data. Machine learning systems can make predictions or decisions without being explicitly programmed for those tasks.
user
Machine learning is a subset of artificial intelligence that enables computer systems to automatically learn and improve based on experience without explicit programming. Algorithms build models from training data to make predictions or decisions, iteratively learning from the data without being explicitly programmed for those specific tasks.
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: Provide a short summary of the following text

The station first signed on the air on December 2, 1987, as W12BK, broadcasting on VHF channel 12; later that month, it moved to UHF channel 69 and accordingly changed its calls to W69BT. It originally operated as a translator of Chicago sister station WCIU-TV, which at the time was an independent station with Telemundo as a secondary affiliation. On October 18, 1995, W58BT (channel 58, now WBND-LD on channel 57) became the South Bend market's new ABC affiliate, after full-power WSJV (channel 28) ended its affiliation with that network to join Fox.[3] Due to W58BT's low-power signal which could not reach the entire market, Weigel then converted W69BT into a translator of W58BT to reach areas that could not receive an adequate signal as Weigel campaigned the FCC to increase the station's signal radius, along with establishing its pay-TV coverage.

After several years, those efforts were successful. As most of the market could receive channel 57 without issue, in October 1999, channel 69 became an affiliate of The WB with its own schedule. The station's callsign was changed to WMWB-LP (standing for "Michiana's WB").

After Weigel purchased WYGN-LP (channel 25, now CW affiliate WCWW-LD) in 2002 from 3ABN, Weigel chose to move channel 69's schedule, call letters, and WB affiliation to that station, which was closer to the majority of the channels on the South Bend television dial. Channel 69 then adopted channel 25's former WRDY-LP call letters. It later changed its calls three more times: first to WAAT-LP in 2004, then briefly to WCWW-LP in March 2006. From 2002 until 2004, it was once again simulcasting ABC programming from WBND-LP; after that, it returned to being an independent station, with occasional programming from the Sportsman Channel. 
Response: W69BT, which originally served as a translator for WCIU-TV, became the ABC affiliate for the South Bend market in 1995. Later, it became Michiana's WB affiliate and changed its call letters several times before shifting to simulcasting ABC programming. In 2004 it became an independent station again broadcasting occasional programming from the Sportsman Channel.

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.
