 Complete the following phrase:  Davis represented her nation Liberia at the 2008 Summer Olympics in Beijing, where she competed in two sprint categories. For her first event, 400 metres, Davis ran in the fifth heat against six other athletes, including American sprinter Sanya Richards, who eventually won the bronze medal in the final. She finished the race only in last place by sixty-three hundredths of a second 0.63 behind Kazakhstans Olga Tereshkova, with a time of 53.99 seconds. Three days later, Davis competed for her second event, 