List of doping cases in athletics

Columns: Name | Country | Event | Date of violation | Banned substance ( s ) / Anti-doping rule violation | Sanction
Helder Ornelas | Portugal | Marathon | 2010 | Biological passport | 4 years | Yolanda Osana | Dominican Republic | Hurdling | 2012 | Stanozolol | 2 years | Oludamola Osayomi | Nigeria | Sprinting | 2010 | Methylhexaneamine | Artur Osman | Poland | Long distance | 2005 | Norandrosterone | 2 years | Nadzeya Ostapchuk | Belarus | Shot put | 2012 2005 ( Retested in 2012 ) | Metenolone Formestane , 4-Hydroxytestosterone | 4 years | Hanane Ouhaddou | Morocco | Steeplechase | 2009 | Biological passport | 2 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