CREATE TABLE table_19959 ("Election" FLOAT, "Labour" FLOAT, "Conservative" FLOAT, "Liberal" FLOAT, "Social Democratic Party" FLOAT, "Social and Liberal Democrats/ Liberal Democrats" FLOAT, "Independent" FLOAT, "Green" FLOAT, "Other" TEXT, "Control" TEXT)

Name the social democratic party for labour
SELECT "Social Democratic Party" FROM table_19959 WHERE "Control" = 'Labour'
SELECT "Social Democratic Party" FROM "table_19959" WHERE "Control" = 'Labour'