Table: planetary_stories
Columns: title
published_in
publication_date
setting
fictional_date
main_characters

Question: Name what was published in july 1934 with a setting of mars
SQL: SELECT "published_in" FROM planetary_stories WHERE "setting" = 'mars' AND "publication_date" = 'july 1934'

Question: Name the publication date when the fictional date is 2112
SQL: SELECT "publication_date" FROM planetary_stories WHERE "fictional_date" = '2112'

Question: Name the title when the main characters are grant calthorpe, lee neilan and the published in of astounding stories
SQL: SELECT "title" FROM planetary_stories WHERE "published_in" = 'astounding stories' AND "main_characters" = 'grant calthorpe, lee neilan'