List of doping cases in athletics

Columns: Name | Country | Event | Date of violation | Banned substance ( s ) / Anti-doping rule violation | Sanction
Samuel Okon | Nigeria | Hurdling | 2010 | Methylhexanamine | Iulia Olteanu | Romania | Cross country | 1996 | Stanozolol | 2 years | Omolara Omotosho | Nigeria | Sprinting | 2009 | Metenolone | 2 years | Mary Onyali-Omagbemi | Nigeria | Sprinting | 1996 | Ephedrine | 3 months | Janet Ongera | Kenya | Long distance | 2002 | Norandrosterone | 2 years | Josephine Onyia | Spain | Hurdling | 2008 2011 2015 | Methylhexaneamine , Clenbuterol Methylhexaneamine Metenolone | 2 years 2 years Life ban | Charity Opara | Nigeria | Sprinting | 1992 | 4 years

Example questions:
Which of the athletes with initial O that was known for doping and came from the most populous country in Africa was born the earliest ? | Who coaches the athlete with initial O who was known for their doping and is from the country that has the world 's longest-serving current head of state ? | How many times did the athlete with initial O who was known for doping and was from the country with 3.8 million square miles win a gold medal ? | What is the birth date of the athlete with initial O known for their doping case that was competing for the second largest country in the European Union ?

Answers:
Mary Onyali-Omagbemi | Lloyd Cowan | four | 15 July 1986