Complete the paragraph. To deal with unstructured information, computers begin with one sentence at a time using $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$ Computers then break the information into smaller $\_\_\_\_\_\_\_\_\_\_\_$ that can be individually classified and sorted into a structure for natural language processing to work with them.

sentence segmentation, sentiments

classification, tokens

sentence segmentation, tokens

pattern matching, entities