query: SELECT name FROM Person WHERE age  =  (SELECT max(age) FROM person)
question: What-all is the name of the person is the oldest?
query_toks: SELECT name FROM Person WHERE age = ( SELECT max ( age ) FROM person )
query_toks_no_value: select name from person where age = ( select max ( age ) from person )
question_toks: What-all is the name of the person is the oldest?