# End-of-chapter quiz

This chapter covered a lot of ground! Don’t worry if you didn’t grasp all the details; the next chapters will help you understand how things work under the hood.

First, though, let’s test what you learned in this chapter!

### 2. What will the following code return?

from transformers import pipeline

ner = pipeline("ner", grouped_entities=True)
ner("My name is Sylvain and I work at Hugging Face in Brooklyn.")

### 3. What should replace … in this code sample?

from transformers import pipeline

result = filler("...")

### 4. Why will this code fail?

from transformers import pipeline

classifier = pipeline("zero-shot-classification")
result = classifier("This is a course about the Transformers library")