def normalize(knowledge): return {“textual content”: (knowledge.get(“textual content”) or “”).strip().decrease()} def tokenize(knowledge): textual content = knowledge.get(“textual content”, “”) cleaned = “”.be a part of(c if (c.isalnum() or c.isspace()) else ” ” for c in textual content) tokens = [t for t in cleaned.split() if t] return {“tokens”: tokens, “depend”: len(tokens)} def sentiment(knowledge): toks = knowledge.get(“tokens”, [])…