query: SELECT count(*) FROM Person WHERE age  >  30 AND job  =  'engineer'
question: How many persons whose age greater 30 and job like engineer?
query_toks: SELECT count ( * ) FROM Person WHERE age > 30 AND job = 'engineer '
query_toks_no_value: select count ( * ) from person where age > value and job = value
question_toks: How many persons whose age greater 30 and job like engineer?