Use small training data to create small models for unit tests.
Training data derived from Reuters corpus in very unscientific way.
Tagging done with CCG Urbana-Champaign online demos:
	http://cogcomp.cs.illinois.edu/page/demos

When https://github.com/apache/lucene/issues/13002 is done, please run './gradlew ???' to generate models from training data here.
