input: from typing import List
  
  def extract_urls_from_webpages(urls: List[str]) -> List[str]:
      """Extracts the URLs from a list of webpages using BeautifulSoup.
      >>> extract_urls_from_webpages(["<url_of_webpage>"])
      ['url1', 'url2', 'url3']
      """
      
  import requests
  from bs4 import BeautifulSoup
  
  def extract_urls_from_webpages(urls: List[str]) -> List[str]:
      """Extracts the URLs from a list of webpages using BeautifulSoup.
      >>> extract_urls_from_webpages(["<url_of_webpage>"])
      ['url1', 'url2', 'url3']
      """
output:     extracted_urls = []
      for url in urls:
          response = requests.get(url)
          soup = BeautifulSoup(response.text, 'html.parser')
          for link in soup.find_all('a'):
              href = link.get('href')
              if href and href.startswith('http'):
                  extracted_urls.append(href)
      return extracted_urls