def classify_with_expert_knowledge(paths):
sentences, labels, class_names = load_test_data(paths)
features, vocabulary, unused = extract_features_and_vocabulary(sentences)
stemmed_target_features = [stem_words(target_feature) for target_feature in TARGET_FEATURES]
predicted = classify(stemmed_target_features, features.toarray(), vocabulary)
print('EXPERT KNOWLEDGE:')
evaluate_classification(predicted, labels, sentences, class_names)
def test_stem_words(words, stemmed_words):
assert stem_words(words) == stemmed_words
