date event duration	
(months) duration		
(years)
date
event
duration -lrb- months -rrb-
duration -lrb- years -rrb-
number parsed year month day
number minimum maximum
number minimum maximum
date text numberspan numberspan
28 november 2000 experiment set up 96-107 8.0-8.9
when did the first drop in the experiment fall ?
WRB VBD-AUX DT JJ NN IN DT NN NN .
December 1938
select c1 from w where c2 = '1st drop fell'