input: from typing import Set, List
  
  def crawl(url: str) -> str:
      """
      Create a web crawler in Python that starts from a given website and looks for other links in the page, scraping the page content.
      Return the content of the first page that contains the word "example".
      
      Example:
      >>> crawl('https://www.example.com')
      'This is an example content.'
      """
      visited = set()
      queue = [url]
      
      while queue:
          curr = queue.pop(0)
          visited.add(curr)
          response = requests.get(curr)
      
          if response.ok:
              soup = BeautifulSoup(response.text, 'html.parser')
  
              # scrape the page here
              if 'example' in soup.get_text():
                  return soup.get_text()
  
              # find all the links
              links = soup.find_all('a', href=re.compile('^http'))
          
              for link in links:
                  if link['href'] not in visited:
                      queue.append(link['href'])
output:     import requests
      from bs4 import BeautifulSoup
      import re
  
      return ""