year name city country guests of honor size
year
name
city
country
guests of honor
size
number
number
address
list length list_first list_second
first second first_number second_number
rank number text address text <n,text(text)> number(number)
1st 1939 nycon i new york, new york united states frank r. paul 3,240
(4,200)
before 1970 how many conventions had more than 1,000 attendees ?
IN CD WRB JJ NNS VBD-AUX RBR IN CD NNS .
3
select count ( c3 ) from w where c2_number < 1970 and c7_first_number > 1000