You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Which mountain is taller, Istor-o-Nal or Siguang Ri?" whose answer is Istor-o-Nal.
Each document should contain about 30 words, and these documents should contain useful information.

Query: height of Istor-o-Nal
Useful Output:

Doc 1: Hungarians David Klein and Bence Kerekes are in Pakistan to climb 7403m Istor-O-Nal in the Hindu Kush.
Doc 2: It crowns a massif with 11 peaks of elevation more than 7000 m (22986ft). The peak is located a few kilometers north of Tirich Mir. Because
Doc 3: The Istor-o-Nal mountain is third on the list with an elevation of 24,288 feet. This peak is within Pakistani borders and is often overlooked due to its
Doc 4: In this group Istor-o-Nal, with a height of 24,271 feet, is second only in altitude to Tirich Mir itself, 25,263 feet.
Doc 5: It was situated at an altitude of 5500 m right at the bottom of the 2000 m high western wall of North I (7373 m). The main difficulties on the route ahead were