Detailed Instructions: In this task, you have to generate the named entities (NER) given its ingredients of the recipe. Named entities are the names of the items without their quantity.
Q: 6 leeks, 2 tablespoons unsalted butter, 6 medium potatoes, peeled and finely sliced, 2 pints chicken stock, 1/4 teaspoon ground mace, 1/2 teaspoon salt, 1/4 teaspoon black pepper, 3/4 cup heavy cream, fresh chives, for garnish
A:
leeks, unsalted butter, potatoes, chicken, ground mace, salt, black pepper, heavy cream, fresh chives