private LinearizedSuffixTree lst;
@Before
public void setUp() throws Exception {
this.corpus = CorpusTest.createSmallCorpus();
lst = new LinearizedSuffixTreeImpl(corpus.sequence(), corpus.alphabetSize());
embeddedExtractor = new EmbeddedContextExtractor(lst, corpus, new NonSingletonBwtSetBuilder(),
new NoContextFilter<EmbeddedInterval>(), WINDOW_SIZE);
nestedExtractor = new NestedMaximalityContextExtractor<String>(corpus, false);
}