CREATE TABLE table_201_46 (id DECIMAL, "name" TEXT, "position" TEXT, "length\ [km]" DECIMAL, "drainage basin area\ [km2]" DECIMAL, "confluence\ [by lahn-km]" DECIMAL, "mouth elevation\ [m above msl]" DECIMAL)

which river is positioned right , with a drainage area for 11.8
SELECT "name" FROM table_201_46 WHERE "position" = 'right' AND "drainage basin area\n[km2]" = 11.8
SELECT "name" FROM "table_201_46" WHERE "drainage basin area\n[km2]" = 11.8 AND "position" = 'right'