Puerto Rico at the 2008 Summer Olympics
Summary
Table:
Athlete	Event	Heat	Quarterfinal	Semifinal	Final

Result	Rank	Result	Rank	Result	Rank	Result	Rank

Héctor Cotto	110 m hurdles	13.72	6 q	13.73	8	Did not advance

Javier Culson	400 m hurdles	49.60	4 q	N/A	49.85	8	Did not advance

David Freeman	1500 m	3:39.70	10	N/A	Did not advance

Félix Martínez	400 m	46.46	7	N/A	Did not advance

Provide the shortest accurate answer you can to the following question, based only on the table data. Enclose the answer in the list of the following JSON object {"answer": ["YOUR ANSWER"]}. If more than one item applies, separate items with commas. Caption of the table: 'summary'. Now answer the following question based on the table information: What is cotto's ranking in the quarterfinals heat?

{"answer": ["6 q"]}