Filters {@link LetterTokenizer} with {@link LowerCaseFilter} and
{@link StopFilter}.
You must specify the required {@link Version} compatibility when creating
StopAnalyzer:
Namespace: Lucene.Net.Analysis- As of 2.9, position increments are preserved
Assembly: Lucene.Net (in Lucene.Net.dll) Version: 2.9.4.1