CREATE TABLE table_53773 ("Group name" TEXT, "English abbr." TEXT, "French abbr." TEXT, "Formal European Parliament name" TEXT, "From" TEXT)

For the group name European Progressive Democrats what is the French abbr?
SELECT "French abbr." FROM table_53773 WHERE "Group name" = 'european progressive democrats'
SELECT "French abbr." FROM "table_53773" WHERE "Group name" = 'european progressive democrats'