Given the task definition and input, reply with output. 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.

1 1/2 tablespoons olive oil, 1/4 cup diced onion, 2 cloves garlic, minced, 5 tablespoons ketchup, 3 tablespoons honey, 3 tablespoons brown sugar, 2 tablespoons apple cider vinegar, 1 tablespoon Worcestershire sauce, salt and pepper to taste, 2 skinless, boneless chicken breast halves

olive oil, onion, garlic, ketchup, honey, brown sugar, apple cider vinegar, Worcestershire sauce, salt, skinless