CREATE TABLE table_16449 ("1973 Democratic initial primary" TEXT, "Manhattan" TEXT, "The Bronx" TEXT, "Brooklyn" TEXT, "Queens" TEXT, "Richmond [Staten Is.]" TEXT, "Total" FLOAT, "%" TEXT)

What is the queens where richmond staten is 42%?
SELECT "Queens" FROM table_16449 WHERE "Richmond [Staten Is.]" = '42%'
SELECT "Queens" FROM "table_16449" WHERE "Richmond [Staten Is.]" = '42%'