You will be given a definition of a task first, then some input of the task.
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.

Preheat oven to 425. Toss half of bread with 1 tablespoon oil on a rimmed baking sheet; season with salt and pepper. Bake, tossing once, until golden brown, 8-10 minutes., Pulse garlic, vinegar, mustard, sugar, remaining bread, and 2 tablespoons water in a blender to combine; let sit 5 minutes to soften bread. With motor running, gradually add remaining 1/3 cup oil; blend until smooth (bread will blend into dressing, thickening and flavoring it, while retaining some texture), about 2 minutes; season with salt and pepper., Toss radicchio, scallions, croutons, and dressing in a large bowl; season with salt and pepper.
Output:
bread, olive oil, Kosher salt, freshly ground pepper, garlic, red wine vinegar, mustard, sugar, head radicchio, scallions