rank name nationality time
rank
name
nationality
time
number
number
number text text number
4 mark henderson united states 54.11
how long did the last place swimmer take to swim the 100 meter butterfly ?
WRB RB VBD-AUX DT JJ NN NN VB TO VB DT CD NN NN .
56.04
select c4 from w order by c1_number desc limit 1