Given the task definition and input, reply with output. You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Sentence: The old bookcase held all of Ted's heavy textbooks with no problem, but the stylish new shelves his wife bought when she remodeled the house snapped under the weight in a day. Question: Which bookshelf was made of thinner wood?
The new bookshelf had thinner wood