Table: galaxy_magazine
Columns: start_month
end_month
cover
spine
indicia
masthead
number_of_issues

Question: Which spine has 12 issues?
SQL: SELECT "spine" FROM galaxy_magazine WHERE "number_of_issues" = 12

Question: How many issues end on jan–72?
SQL: SELECT SUM("number_of_issues") FROM galaxy_magazine WHERE "end_month" = 'jan–72'

Question: Which masthead ends on oct–69?
SQL: SELECT "masthead" FROM galaxy_magazine WHERE "end_month" = 'oct–69'