Abstract: An electronic apparatus and a controlling method thereof are provided. The method of controlling an electronic apparatus according to an embodiment includes: obtaining first text information including a plurality of words, identifying a security level of the first text information based on at least one of a source from which the first text information is obtained or a type of the first text information, obtaining second text information by converting at least one of the plurality of words included in the first text information based on the identified security level, and obtaining first summary sentence information summarizing the second text information through a summary module.

Abstract: An electronic apparatus is provided. The electronic apparatus includes a memory storing a module configured to provide a synonym for at least one word included in an input sentence and a processor configured to generate, based on a sentence including a plurality of words being input, at least one paraphrase sentence for the input sentence using the module, select a second word related to a first word among a plurality of words included in the input sentence, obtain a synonym for the second word using the module, and generate the paraphrase sentence based on a synonym for the first word and the second word.

Abstract: An electronic apparatus and a controlling method thereof are provided. The method of controlling an electronic apparatus according to an embodiment includes: obtaining first text information including a plurality of words, identifying a security level of the first text information based on at least one of a source from which the first text information is obtained or a type of the first text information, obtaining second text information by converting at least one of the plurality of words included in the first text information based on the identified security level, and obtaining first summary sentence information summarizing the second text information through a summary module.