year competition venue position notes
year
competition
venue
position
notes
number
address
first second first_number
number text address rank(text) text
2006 iaaf world athletics final stuttgart, germany 4th (semis) 110 m hurdles
at what competition did david receive the least position ?
IN WDT NN VBD-AUX NNP VB DT JJS NN .
IAAF World Athletics Final
select c2 from w order by c4_first_number desc limit 1