year competition venue position event notes
year
competition
venue
position
event
notes
number
address
number
number hour min sec
number text address rank text time
1998 turin marathon turin, italy 3rd marathon 2:12:59
how many years after the turin marathon did the berlin marathon occur ?
WRB JJ NNS IN DT NNP NNP VBD-AUX DT NNP NNP VB .
6
select ( select c1_number from w where c2 = 'berlin marathon' ) - ( select c1_number from w where c2 = 'turin marathon' )