Given the task definition and input, reply with output. In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.

Place rack in lower third of oven; preheat to 400., Combine sugar, margarine and flour in medium bowl; beat until smooth and creamy., Add eggs, one at a time, beating well after each addition., Stir in buttermilk, lemon juice and salt., Pour into unbaked pie shell., Bake for 10 minutes., Reduce heat and bake at 350 for approximately 40 minutes, or until filling sets and is lightly browned.
sugar, butter, flour, eggs, buttermilk, lemon juice, salt, shell