color & icon name name mark first section
opened last ex-
tension length stations
color & icon
name
name
mark
first section opened
last ex - tension
length
stations
list length
number
number
first second first_number second_number
number
<t, text> text text text number number unitnum(unitnum) number
yellow line 1 higashiyama line h 1957 1982 20.6 km (12.8 mi) 22
number of lines opened with no extensions listed
NN IN NNS VBN IN DT NNS VBN
7
Keyword Keyword Keyword Column Keyword Keyword Keyword Keyword Column Keyword Keyword
select count ( c2 ) from w where c4 not null
Keyword Keyword Column None None Keyword Column Keyword
['agg', 'agg_count'] ['agg', 'agg_count'] c2 ['null', 'null_not'] c4 ['null', 'null_not']