represent contestant age height hometown
represent
contestant
age
height
hometown
number
number
number
number text number unitnum text
1 mildred kincaid adames 20 1.65 mts panama city
how many contestants are at least 21 years old ?
WRB JJ NNS VBD-AUX IN JJS CD NNS JJ .
8
select count ( c2 ) from w where c3_number >= 21