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: "How long is the river Tygart Creek is part of the watershed of via the Kanawha and Ohio?" whose answer is 2320 mi.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Tygart Creek length
Useful Output:

Doc 1: Carl Burton, with Friends of Tygart Creek, said because depths vary along the length of the creek that just because it's deep enough to put
Doc 2: Description: A notoriously undercut river section with waterfalls and other powerful class III-V rapids. 4-7 miles.
Doc 3: Tygarts Creek is a tributary of the Ohio River; however, it's officially a part of the Mississippi River watershed. Flowing generally in a
Doc 4: Length, 6.7 mi. Avg Gradient, 35 fpm. Gauge, Tygart Valley River at Philippi, Wv. Flow Rate as of 2 days, 883 cfs. low runnable. Reach Info Last
Doc 5: length. 23±0 kilometre. 1 reference. imported from Wikimedia project  Tygart Creek map.png 2,276 × 1,988; 5.31 MB. 1 reference. imported