Stanford CoreNLP provides a set of natural language analysis tools. It can give the base forms of words, their parts of speech, whether they are names of companies, people, etc., normalize dates, times, and numeric quantities, and mark up the structure of sentences in terms of phrases and word dependencies, indicate which noun phrases refer to the same entities, indicate sentiment, extract open-class relations between mentions, etc.
Centro di Ricerche in Bioclimatologia Medica, Biotecnologie e Medicine Naturali. Universita degli Studi di Milano. World Health Organization (WHO) Collaborating Center for Traditional Medicine. Nonconventional Medicines. Bioclimatology and Thermal Med
N. Fuchs. Proceedings of the 13th International Conference on Conceptual Structures (ICCS 2005), volume 3596 of Lecture Notes in Computer Science, page 51-51. Springer, (2005)