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 gupta ruler was successful in repulsing the huna attack?" whose answer is Skandagupta.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Gupta ruler who repulsed Hunas
Useful Output:

Doc 1: During the later years of Kumar Gupta's reign, the empire was attacked by Pushyamitras but it was repulsed. Later, Skanda Gupta succeeded
Doc 2: Huns' movement into the Indian territories was successfully repulsed by Skandagupta in the early 5th century. In the latter half of the 5th
Doc 3: However, invasions by the Huns in the 4th century began the decline of the powerful Gupta Empire.  Skanda Gupta repulsed invasions by the Indo-
Doc 4: After establishing himself in eastern and western India, Chandragupta II defeated northern rulers like the Huns, Kambojas and Kiratas. The
Doc 5:  Gupta ruler Skandagupta's victory over the Hunas. Thus the Jat origin  He repulsed a Huna attack c. 455, But the expense of the wars