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.

Let me give you an example: Preheat oven to 375 degrees., Boil syrup, sugar and shortening over medium heat, stirring constantly., Remove from heat., Gradually stir in flour and nuts., Drop by teaspoonfuls about 3 inches apart on lightly greased cookie sheet., Bake 5 to 6 min., Remove from oven and let stand 5 min, before removing from sheet., May be rolled into cylindrical shape while still hot., If cooled too much, return to oven for a minute., Yield: 4 dozen cookies.
The answer to this example can be: flour, nuts, corn syrup, shortening, brown sugar
Here is why: This is a good example, as we see the NER is generated correctly from the directions.

OK. solve this:
For the chicken stock: Place the chicken bones, garlic, celery, carrots, onions, parsley, salt, peppercorns, cloves and bay leaves in a 10-quart or larger pressure cooker., Pour in about 16 cups water to just cover ingredients by 1 inch., Add more water if necessary but do not fill more than two-thirds of the pot., Cover and lock the lid., Bring to pressure according to manufacturer's instructions., (If the cooker has two levels of pressure, cook on the lowest.), Adjust the heat to maintain pressure, and cook for 45 minutes., Let the pressure subside by itself (natural method), or if in a rush, run cold water over the lid for a few minutes., Strain the liquid through a colander lined with layers of cheesecloth., Discard the solids., Cool uncovered and refrigerate overnight until the fat floats and solidifies., Remove the fat and save a small amount for matzo balls., Storage: Refrigerate up to 4 days., Important to bring to a rolling boil for at least 1 minute before using., Freeze up to 6 months., For the matzo balls: In a mixing bowl, whisk together the seltzer, schmaltz, salt, pepper and eggs., Then in a separate bowl, add the baking soda to the matzo meal and mix together., Next, add the matzo meal mixture into the egg mixture while stirring to a loose consistency., It will look watery, like a loose porridge., If it becomes too thick, either don't add the full amount of matzo meal or add a bit more seltzer., Cover and refrigerate for 1 hour., Fill a large pot with water and salt and bring to a simmer., With wet hands, roll out balls and gently drop to the water., Simmer until tender, light and fluffy in the center, 45 to 60 minutes., (To test centers, insert a toothpick, which should slide easily all the way through.), Allow to cool in the water undisturbed., Refrigerate in the cooking liquid or transfer to chicken soup., Serve with assorted garnishes.
Answer:
chicken, garlic, celery, carrots, onions, parsley, salt, peppercorn, cloves, bay leaves, seltzer, salt, ground pepper, eggs, baking soda, matzo meal, Carrot, Celery, Fresh dill, chicken, lemon juice