SELECT name ,  age FROM people WHERE is_male  =  'T' AND people_id NOT IN (SELECT male_id FROM wedding)
Show the name and age for all male people who don't have a wedding.
SELECT name , age FROM people WHERE is_male = 'T ' AND people_id NOT IN ( SELECT male_id FROM wedding )
select name , age from people where is_male = value and people_id not in ( select male_id from wedding )
Show the name and age for all male people who do n't have a wedding .