year time windspeed city date
year
time
windspeed
city
date
number
number
number
number parsed year month day
number number number text date text
2000 11.45 -2.3 kingston 13 march the progression of powell's 100 m seasons' best times
what is the average windspeed brussels had ?
WP VBD-AUX DT JJ NN NNP VBD-AUX .
0.50
select avg ( c3_number ) from w where c4 = 'brussels'