A library wants to automate the classification of electronic books based on the contents of the books.
Which AWS service should the library use to meet this requirement?
Amazon Redshift
Amazon CloudSearch
Amazon Comprehend
Amazon Aurora
Explanations:
Amazon Redshift is a data warehousing service, suited for analyzing large datasets, but not for text classification.
Amazon CloudSearch is used for search-related operations, helping to search within text but not to classify it.
Amazon Comprehend uses natural language processing (NLP) to analyze and categorize text, ideal for book classification.
Amazon Aurora is a relational database service, designed for transaction processing, not content classification.
I judge that the answer is:
Amazon Comprehend