You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who wrote the book cheaper by the dozen?" whose answer is Ernestine Gilbreth Carey.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who wrote the book Cheaper by the Dozen
Useful Output:

Doc 1: In the 50 years after her husband's death, Lillian Gilbreth came to be written about more than he, and as she was a woman, and a woman of “
Doc 2: [REVIEW] Cheaper By The Dozen, by Frank B Gilbreth Jr. & Ernestine Gilbreth Carey – Equal Opportunity Reader.
Doc 3: As a result, when I picked up the book Cheaper By The Dozen by Frank Gilbreth, Jr and Ernestine Gilbreth Carey, I was particularly eager to
Doc 4: "Cheaper by the Dozen," a classic memoir by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey, offers a delightful and humorous insight
Doc 5: The book is semi-autobiographical and was written by two of the Gilbreth's 12 children, Frank Jr. and Ernestine.