input: Write a function that will take two strings and return true if the first string contains the second.
  
  def check_contains(query, word): 
      if query.find(word) != -1:
          return True
      return False
  
  assert check_contains("catering", "cat")==True
  assert check_contains("apple", "banana")==False
  assert check_contains("hello", "h")==True
  assert check_contains("", "world")==False
  assert check_contains("Programming", "ming")==True
output: def check_contains(query, word): 
      return word in query