speed [km/h (mph)] train type location date comments
speed -lsb- km\\/h -lrb- mph -rrb- -rsb-
train
type
location
date
comments
first second first_number second_number
number parsed year month day
number(number) text text text date text
504 (313.2) ml-500 maglev miyazaki maglev test track 12 december 1979 three-car train set
what was the date of the first speed recorded that was over 450 km/h ?
WP VBD-AUX DT NN IN DT JJ NN VBD DT VBD-AUX IN CD NN .
12 December 1979
select c5 from w where c1_first_number > 450 order by c5_parsed limit 1