Simplify the following text for a Grade 7 native English-speaking person.
Original: Lucas Sang ( 12 February 1961 -- 1 January 2008 ) was a Kenyan athlete who participated in the 1988 Summer Olympics , held in Seoul .
Simplified: Lucas Sang ( February 12 , 1961 - January 1 , 2008 ) was a Kenyan runner who raced at the Olympic Games in 1988 .