user: Are tequila and mezcal basically the same thing?

assistant: Tequila and mezcal are similar in some ways, but they also have one distinct difference. Both liquors are made from agave. Tequila, however, is restricted to using only blue agave in its production process. Technically tequila is a type of mezcal because mezcal encompasses all liquors made from any type of agave. But unless blue agave is used to produce the liquor, it is not tequila.

user: Which of the following ski resorts are located in Utah: Alta Ski Area, Brighton Ski Resort, Snowbird, Solitude Mountain Resort, Deer Valley Resort, Park City Mountain,  Woodward Park City, Nordic Valley Resort, Powder Mountain, Snowbasin, Sundance Resort, Beaver Mountain Resort, Cherry Peak Resort, Brian Head Resort, Eagle Point Resort, Keystone, Copper Mountain, Vail Resort, Beaver Creek, Eldora

assistant: The following ski resorts are in Utah: Alta Ski Area, Brighton Ski Resort, Snowbird, Solitude Mountain Resort, Deer Valley Resort, Park City Mountain,  Woodward Park City, Nordic Valley Resort, Powder Mountain, Snowbasin, Sundance Resort, Beaver Mountain Resort, Cherry Peak Resort, Brian Head Resort, Eagle Point Resort

user: Why was the iPhone such a successful product?

assistant: The iPhone did away with physical keyboards and instead introduced a multi-touch screen which didn't require a stylus. The iPhone software, iOS, was developed to take advantage of all hardware and design capabilities of the phone, including the touchscreen. Each application presented its customized input options on the touch screen. In addition, the iOS was flexible and expandable through the App Store, giving the iPhone  user a wide choice of third-party apps which were not known before. iPhone hardware quality was also a nice surprise to the users.