sentence.addAll(processLexeme(leaf.getLexeme()));
sentence.addAll(processLexeme(leaf.getLexeme()));
sentence.addAll(processLexeme(leaf.getLexeme()));
sentence.addAll(processLexeme(leaf.getLexeme()));
sentence.addAll(processLexeme(leaf.getLexeme()));
sentence.addAll(processLexeme(leaf.getLexeme()));