location building year km monument
location
building
year
km
monument
number
number
text text number number number
bischofsheim station building 1958 8.25
what is the average of years
WP VBD-AUX DT NN IN NNS
1876
Keyword Keyword Keyword Column Keyword Keyword Keyword
select avg ( c3_number ) from w
None None Keyword Keyword Keyword Column
['agg', 'agg_avg'] ['agg', 'agg_avg'] ['agg', 'agg_avg'] c3_number