brand active ingredient therapeutic area pathology
brand
active ingredient
therapeutic area
pathology
number
list length
number text <p,text> text text
1 ebastel and others ebastine respiratory allergy
how many brands treat the central nervous system ?
WRB JJ NNS VBP DT JJ JJ NN .
3
Keyword Keyword Keyword Column Keyword Keyword Keyword Keyword Column Keyword Literal.String
select count ( c2 ) from w where c4 = 'central nervous system'
Keyword Keyword Column None None Literal Literal Literal None
['agg', 'agg_count'] ['agg', 'agg_count'] c2