user: What can you tell me about about the Landscape Arch in Arches National Park in Utah?

assistant: The Landscape Arch is a natural arch considered the fifth longest natural arch in the world. It is located in the Arches National Park in Utah, USA. You can get to the arch by walking along a low-graded train in the park. The arch has recently lost some of its slabs due to rockfalls.

user: In my upcoming trip across Europe I'm planning to visit the following countries: Germany, Austria, Hungary, Romania, Bulgaria and Greece. Are all of them part of the Schengen area?

assistant: Most of them are, but not all. Romania and Bulgaria are the two exceptions.

user: What is "diglossia"?

assistant: Diglossia is when one community uses two different languages or dialects depending on the circumstances e.g. for written things and for casual conversation. A weird (not actual schoolbook) case of that is Swiss German. High German is used for written and formal things while Swiss German is used to speak.