Table:
athlete
event
heat
quarterfinal
semifinal
final

result
rank
result
rank
result
rank
result
rank

hector 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

felix martinez
400 m
46.46
7
n/a
did not advance

Statement: cotto participated in the quarterfinals heat, ranking sixth after achieving a time of 13.72 seconds.
Question: what is cotto's ranking in the quarterfinals heat?
Answer: 6 q