year competition venue position notes
year
competition
venue
position
notes
number
address
first second first_number
first second first_number second_number
number text address rank(text) unitnum(unitnum)
2002 world junior championships kingston, jamaica 18th (q) 64.51 m (1.75 kg)
what 's the difference in meters between the 2004 and 2009 competitions ?
WP VBZ DT NN IN NNS IN DT CD CC CD NNS .
1.33
select ( select c5_first_number from w where c1_number = 2004 ) - ( select c5_first_number from w where c1_number = 2009 )