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 20 years old ?
WRB JJ NNS VBD-AUX CD NNS JJ .
6
select count ( c2 ) from w where c3_number = 20