"OpenNLP is an organizational center for open source projects related to natural language processing. [...] OpenNLP also hosts a variety of java-based NLP tools which perform sentence detection, tokenization, pos-tagging, chunking and parsing, named-entity detection, and coreference using the OpenNLP Maxent machine learning package."
XSEM is a markup standard that reflects the structure of a particular type of literature, Scripture. More properly, it is a data schema. A data schema defines the structure of a specific data set, in this case, the Bible. It allows Bible text to be encoded in a standard way regardless of the language the text may be written in.