Machine Learning on language style

To find out the method of Language Style Machine Learning, established a natural language communication model with Abstract Algebra. Analyze the relations on the model. Note the Universal Property of free semigroups for Word Monoids. Conclude by a practical example that the word class and the word order are two stable elements during language transferring. Because that the word class and the word order are two parts of phrase structure, the phrase structure is the feature of language style. We can apply Natural Language Processing method to get the feature of language style, automatically by phrase structure identification and phrase structure probabilities counting. Thus establish a foundation for further Machine Learning.