user: Write a paragraph to refute a claim by a colleague that ancient structures such as Stonehenge, the Great Pyramid are evidence of UFO activities on Earth

assistant: There are several strong arguments against concluding that alien races built the structures like the Stonehenge or the Pyramids. First, there is evidence that these magnificent structures were built by humans. For example, tombs of the pyramid builders were found in the vicinity of the Great Pyramind (with human remains!). The technology to move and assemble the massive stones of the Stonehenge has been shown to be available to humans at that time. Second, given that space is vast the chance of finding one tiny planet among billions is infinitesimal. If alien intelligence had indeed found our one inhabited planet they are unlikely to have just created couple of structures and avoided any further contact with Earth and its inhabitants. In science, Occam’s Razor (“the best explanation is the simplest one”) is a guiding principle and until there is much more evidence of alien visitation it would be inadvisable to jump to a conclusion that aliens built these structures.

user: What is the etymology of the word cookie?

assistant: The earliest known usage of the work cookie comes from 1701 in Scotland, where it meant "plain bun".  Starting in 1808 the term was associated with small, flat, sweet cakes as part of American English, which is believed to be derived from the Dutch word keokie.

user: which are the must visit places in India?

assistant: In 2012, National Geographic's Traveller magazine named the state Kerala as one of the "ten paradises of the world" and "50 must see destinations of a lifetime". In 2014, Tamil Nadu, Maharashtra and Uttar Pradesh were the most popular states for tourists. Delhi, Mumbai, Chennai, Agra and Jaipur were the five most visited cities of India by foreign tourists during the year 2015. As of 2017, worldwide, Delhi is ranked 28th by the number of foreign tourist arrivals, while Mumbai is ranked 30th, Chennai 43rd, Agra 45th, Jaipur 52nd and Kolkata 90th.