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: "Who was born first, Ahmad Nahavandi or Muhammad Iqbal?" whose answer is Ahmad ibn Muhammad al-Nahawandi.
Each document should contain about 30 words, and these documents should contain useful information.

Query: birth year of Ahmad Nahavandi
Useful Output:

Doc 1: ABSTRACT: This paper reviews the antecedent of internal branding and its different dimensions. Specifically,.
Doc 2: We trained a framework that can simultaneously detect, track and give predictions about the intended actions of multi-cyclists in the scene on time.
Doc 3: An illustration of a self-trimming lamp from Ahmad's On Mechanical Devices, written in Arabic. Born, 9th century. Relatives, Nuʿaym ibn Muḥammad ibn Mūsā, the
Doc 4: At the age of 10 years he developed bilateral gynecomastia (stage 4). Laboratory investigations showed raised follicle-stimulating hormone, luteinizing hormone,
Doc 5: Ahmad Nahavandi. Ahmad ibn Muhammad al-Nahavandi was a Persian  year 800AD. He and Mashallah ibn Athari were among the earliest