code year
code
year
number
text number
a 1927
is the e code less than 1950 ?
VBD-AUX DT NNP NNP JJR IN CD .
yes
Keyword Keyword Keyword Column Keyword Keyword Keyword Column Keyword Literal.String Keyword Keyword Literal.Number
select ( select c2_number from w where c1 = 'e' ) < 1950
None None Literal Column Keyword Keyword Literal None
c1 ['comp', ''] ['comp', '']