Table:
text: Swimming at the 2007 World Aquatics Championships – Men's 800 metre freestyle
Heats
Heats
Rank_ Heat_Lane Name_ Nationality Time_
13 4 : 6 Marcos Rivera Miranda Spain 7:57.14
14 6 : 7 Mads Glæsner Denmark 7:59.43
15 4 : 1 Dragoş Coman Romania 7:59.91
16 4 : 2 Vitaly Romanovich Russia 7:59.94
17 4 : 4 Christian Hein Germany 8:00.14
18 6 : 5 Nicolas Rostoucher France 8:03.03
19 5 : 7 Maciej Hreniak Poland 8:05.01
20 5 : 8 David Brandl Austria 8:05.48
21 3 : 4 Ricardo Monasterio Venezuela 8:05.81
22 3 : 3 Fernando Costa Portugal 8:06.44
23 1 : 7 Sun Yang China 8:08.12
24 3 : 7 Ahmed Mathlouthi Tunisia 8:09.59
25 6 : 1 Felipe Araújo Brazil 8:10.50

Question: What is Sun Yang's lowest rank among swimmers in the 2007 World Aquatics Championships - Men's 800m Freestyle Heats?

Question: What is the rank for heat : lane of 4 : 1 for swimming at the 2007 World Aquatics Championships - Men's 800 meter freestyle?