Togo at the 2004 Summer Olympics
Athletics
Table:
Athlete	Event	Heat	Semifinal	Final

Result	Rank	Result	Rank	Result	Rank

Jan Sekpona	Men's 800 m	1:54.25	8	Did not advance

Sandrine Thiébaud-Kangni	Women's 400 m	52.87	7	Did not advance

Give a concise answer to this question supported by the table contents. Enclose the answer in the list of the following JSON object {"answer": ["YOUR ANSWER"]}. If more than one item applies, separate items with commas. Here is the table caption: 'athletics'. Please answer the question according to the table: What was the rank of jan sekpona in the heat?

{"answer": ["8.0"]}