Intellexer Summarizer combines different natural language processing algorithms in order to obtain the highest results. We use hybrid approach to text information analysis which is based on using not only linguistic and statistical information, but also a set of complex semantic rules developed by linguists. Taking into consideration the knowledge of facts and deep semantic relations between them, summarization rules assign a certain value per sentence of the original text. This value defines the importance of the sentence in respect to the idea of the text.