一、心灵启航：安妮宝贝的温馨语录

二、爱与自我发现：安妮宝贝经典语录中的成长智慧

三、勇敢面对挑战：安妮宝贝的不屈精神

四、友情与支持：安妮宝贝经典语录中的亲密纽带

五、责任与担当：从安妮宝贝看待社会责任感培养

六、梦想与追求：在安妮宝贝世界里的无限可能

七、新时代下的传承价值：探索安妮宝贝经典语录在当代教育中的应用策略

八、语言艺术的魅力展示——解读和分析《小妇人》中的人物性格表达方式

九、“如同一颗星辰，永远照亮前行之路”——通过“小妇人”的视角探讨女性独立意识的形成过程及意义

import os

import re

from typing import List, Tuple, Dict, Set, Optional

from collections import defaultdict

# Define a function to preprocess the text data.

def preprocess_text(text: str) -> str:

# Remove any non-alphanumeric characters and convert all words to lowercase.

return re.sub(r'[^a-zA-Z0-9\s]', '', text).lower()

# Define a function to extract keywords from the preprocessed text.

def extract_keywords(preprocessed_text: str) -> List[str]:

# Split the preprocessed text into individual words.

words = preprocessed_text.split()

# Initialize an empty list to store the keywords.

keywords = []

# Iterate over each word in the list of words.

for word in words:

# Check if the word is not already present in the list of keywords and has more than two characters.

if word not in keywords and len(word) > 2:

# Add the word as a keyword to the list of keywords.

keywords.append(word)

else:

continue

return sorted(keywords)

# Define a main function that takes user input for preprocessing and extracting key phrases from it.

def main():

while True:

try:

user_input = input("Enter some text or 'exit' if you want to quit.\n")

if user_input.lower() == "exit":

break

processed_text = preprocess_text(user_input)

print(f"The preprocessed text is:\n{processed_text}\n")

extracted_keywords = extract_keywords(processed_text)

print(f"The extracted key phrases are:\n{extracted_keywords}\n")

except Exception as e:

print(f"An error occurred: {e}")

if __name__ == "__main__":

main()