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: "In which prestigious venues did the Pakistani female singer performed who's some songs were written by Riaz-Ur-Rehman Saghar?" whose answer is Royal Albert Hall.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Pakistani female singer songs written by Riaz-Ur-Rehman Saghar
Useful Output:

Doc 1: Singer(s): Mala, Music: Rehman Verma, Poet: M. Sadiq, Actor(s):. 313. Dil Saday Tay Peh Geya Daka, Assi Bharday Thandian Haawan.. (Film: Mela 2 Din Da
Doc 2: Pakistani singer-songwriters (2 C, 27 P). Pages in category "Pakistani  Riaz ur Rehman Saghar · Himayat Ali Shair · Qateel Shifai · Ghazi Sial · Baqi
Doc 3: Urdu Poets - Find famous poetry by Urdu Poets. Popular shayari by Urdu shayar of Pakistan and India. Read Best sher o shayari of our famous poets of Urdu.
Doc 4: Zaib Rehman is a Pakistani lawyer and actress. She started in television in her 20s and made her movie debut in the 2011 blockbuster Bol.
Doc 5: Fariha Pervez (Punjabi: فریحہ پرویز) is a Pakistani pop singer-songwriter, and a music producer.  Arshad, Riaz ur Rehman Saghar. Close. Abhi Abhi (2010).