python str1 = "Hello" str2 = "World" python text = "Python is a powerful programming language" python text = "Python is easy to learn" python text = "Python is a popular programming language" python import nltk from nltk.tokenize import word_tokenize from nltk.corpus import stopwords def preprocess_text(text): return cleaned_text def extract_features(text): features = {} for word in text.split(): features[word] = True return features text = "Python is a powerful programming language. It is widely used for data analysis and machine learning." cleaned_text = preprocess_text(text) features = extract_features(cleaned_text) print(features)


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