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: 2 tablespoons olive oil, 1 yellow onion, chopped, 4 cups water, 1 cup lentils, 1/4 cup bulgur, 1 teaspoon salt, 1 teaspoon ground black pepper, 1 lemon, quartered, 2 green onions, chopped, 1 cup plain yogurt
A: 
olive oil, yellow onion, water, lentils, bulgur, salt, ground black pepper, lemon, green onions, plain yogurt