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 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 theory of evolution by natural selection as proposed by Charles Darwin.

Charles Darwin's theory of evolution by natural selection proposes that species evolve over time through a process where traits that enhance survival and reproduction become more common in successive generations. It is based on the observations that more offspring are produced than can survive, individuals in a population vary, and some of this variation is heritable. The individuals with advantageous traits are more likely to survive and reproduce, thereby passing on these traits. Over long periods, this can lead to the emergence of new species. Darwin's theory was presented in his book ‘On the Origin of Species’ published in 1859.
user
Darwin's theory of evolution by natural selection suggests species evolve as traits enhancing survival and reproduction become more common over generations. Variations in traits are heritable, and advantageous traits increase survival and reproduction chances, leading to new species over time. This theory was detailed in his 1859 book ‘On the Origin of Species’.
assistant